It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: https://318634.mit-edu.top/post/6052839714

  1. <!doctype html>
  2. <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" prefix="og: http://ogp.me/ns#">
  3.  
  4.  <head>
  5.    <meta charset="utf-8">
  6.    <meta name="applicable-device" content="pc,mobile">
  7.    <meta name="viewport" content="width=device-width, initial-scale=1">
  8.    <title>Data-Driven Insights into Player Churn in Freemium Game Models #687368641743 (2025-02-04)</title>
  9.    <link rel="canonical" href="https://318634.mit-edu.top/post/6052839714">
  10.    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap">
  11.    <link rel="stylesheet" href="https://x.mit-edu.top/static/css/style.css">
  12.    <script src="https://x.mit-edu.top/static/js/lazysizes.min.js" async></script>
  13.    <link rel="shortcut icon" href="/favicon.ico">
  14.    <!-- Open Graph Metadata -->
  15.    <meta property="og:type" content="article" />
  16.    <meta property="og:title" content="Data-Driven Insights into Player Churn in Freemium Game Models" />
  17.    <meta property="og:description" content="Data-Driven Insights into Player Churn in Freemium Game Models #687368641743 (2025-02-04)" />
  18.    <meta property="og:url" content="https://318634.mit-edu.top/post/6052839714" />
  19.    <meta property="og:site_name" content="mit-edu.top" />
  20.    <meta property="og:image" content="https://x.mit-edu.top/static/images/post/2.jpg" />
  21.    <meta property="og:article:published_time" content="2025-02-04T15:53:38Z" />
  22.    <meta property="og:article:author" content="Dr. Thomas Clark" />
  23.    <meta property="og:article:section" content="mit-edu.top" />
  24.    <meta property="og:article:tag" content="Games, Mobile Games, Video Games" />
  25.    <!-- Schema.org -->
  26.    <script type="application/ld+json">{
  27.            "@context": "https://schema.org",
  28.            "@type": "ScholarlyArticle",
  29.            "headline": "Data-Driven Insights into Player Churn in Freemium Game Models #687368641743 (2025-02-04)",
  30.            "author": {
  31.                "@type": "Person",
  32.                "name": "Dr. Thomas Clark",
  33.                "affiliation": {
  34.                    "@type": "Organization",
  35.                    "name": "mit-edu.top"
  36.                },
  37.                "url": "https://318634.mit-edu.top/post/6052839714"
  38.            },
  39.            "datePublished": "2025-02-04T15:53:38Z",
  40.            "image": "https://x.mit-edu.top/static/images/post/2.jpg",
  41.            "journal": {
  42.                "@type": "Periodical",
  43.                "name": "mit-edu.top",
  44.                "issn": "10.1069/687368641743"
  45.            },
  46.            "publisher": {
  47.                "@type": "Organization",
  48.                "name": "mit-edu.top",
  49.                "url": "https://318634.mit-edu.top"
  50.            },
  51.            "doi": "687368641743",
  52.            "abstract": "Data-Driven Insights into Player Churn in Freemium Game Models #687368641743 (2025-02-04)",
  53.            "citation": {
  54.                "@type": "CreativeWork",
  55.                "name": "Data-Driven Insights into Player Churn in Freemium Game Models",
  56.                "author": "Dr. Thomas Clark",
  57.                "datePublished": "2025-02-04T15:53:38Z",
  58.                "url": "https://318634.mit-edu.top/post/6052839714"
  59.            }
  60.        }
  61.    </script>
  62. </head>
  63.  
  64. <body>
  65.    <div class="site-mobile-menu site-navbar-target">
  66.        <div class="site-mobile-menu-header">
  67.            <div class="site-mobile-menu-close">
  68.                <span class="icofont-close js-menu-toggle"></span>
  69.            </div>
  70.        </div>
  71.        <div class="site-mobile-menu-body"></div>
  72.    </div>
  73.    <nav class="site-nav">
  74.        <div class="container">
  75.            <div class="site-navigation">
  76.                <div class="row">
  77.                    <div class="col-md-6 text-center order-1 order-md-2 mb-3 mb-md-0">
  78.                        <a href="https://318634.mit-edu.top" class="logo m-0 text-uppercase">mit-edu.top</a>
  79.                    </div>
  80.                    <div class="col-md-3 order-3 order-md-1">
  81.                    </div>
  82.                </div>
  83.            </div>
  84.        </div>
  85.    </nav>
  86.    <div class="section post-section pt-5">
  87.        <div class="container">
  88.            <div class="row justify-content-center">
  89.                <div class="col-lg-8">
  90.                    <div class="text-center">
  91.                        <img src="https://x.mit-edu.top/static/images/user/18.jpg" alt="Data-Driven Insights into Player Churn in Freemium Game Models" title="Data-Driven Insights into Player Churn in Freemium Game Models" class="author-pic img-fluid rounded-circle mx-auto">
  92.                    </div>
  93.                    <span class="d-block text-center">Thomas Clark</span>
  94.                    <span class="date d-block text-center small text-uppercase text-black-50 mb-5">2025-02-04</span>
  95.                    <h2 class="heading text-center">Data-Driven Insights into Player Churn in Freemium Game Models</h2>
  96.                    <p class="lead mb-4 text-center">Thanks to Thomas Clark for contributing the article "Data-Driven Insights into Player Churn in Freemium Game Models".
  97.                    </p>
  98.                    <img src="https://x.mit-edu.top/static/images/post/2.jpg" alt="Data-Driven Insights into Player Churn in Freemium Game Models" title="Data-Driven Insights into Player Churn in Freemium Game Models" class="img-fluid rounded mb-4 lazyload">
  99.                    <p>This study examines the psychological effects of mobile game addiction, including its impact on mental health, social relationships, and academic performance. It also explores societal perceptions of gaming addiction and discusses potential interventions and preventive measures.</p>
  100. <p>From the nostalgic allure of retro classics to the cutting-edge simulations of modern gaming, the evolution of this immersive medium mirrors humanity's insatiable thirst for innovation, escapism, and boundless exploration. The rich tapestry of gaming history is woven with iconic titles that have left an indelible mark on pop culture and inspired generations of players. As technology advances and artistic vision continues to push the boundaries of what's possible, the gaming landscape evolves, offering new experiences, genres, and innovations that captivate and enthrall players worldwide.</p>
  101. <p>This research examines the intersection of mobile games and the evolving landscape of media consumption, particularly in the context of journalism and news delivery. The study explores how mobile games are influencing the way users consume information, engage with news stories, and interact with media content. By analyzing game mechanics such as interactive narratives, role-playing elements, and user-driven content creation, the paper investigates how mobile games can be leveraged to deliver news in novel ways that increase engagement and foster critical thinking. The research also addresses the challenges of misinformation, echo chambers, and the ethical implications of gamified news delivery.</p>
  102. <p>The rise of e-sports has elevated gaming to a competitive arena, where skill, strategy, and teamwork converge to create spectacles that rival traditional sports. From epic tournaments with massive prize pools to professional leagues with dedicated fan bases, e-sports has become a global phenomenon, showcasing the talent and dedication of gamers worldwide. The adrenaline-fueled battles and nail-biting finishes not only entertain but also inspire a new generation of aspiring gamers and professional athletes.</p>
  103. <p>This research evaluates the environmental sustainability of the mobile gaming industry, focusing on the environmental footprint of game development, distribution, and consumption. The study examines energy consumption patterns, electronic waste generation, and resource use across the mobile gaming lifecycle, offering a comprehensive assessment of the industry's impact on global sustainability. It also explores innovative approaches to mitigate these effects, such as green game design principles, eco-friendly server technologies, and sustainable mobile device manufacturing practices.</p>
  104.  
  105.                    <p>
  106.                    <a href="/redirect/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">Link</a>
  107.                    </p>
  108.                    <p><a href="https://www.linegames.org/" target="_blank" class="custom-link">External link</a>
  109. <a href="https://www.iliiili.com/" target="_blank" class="custom-link">External link</a>
  110. <a href="https://www.digwow.net/" target="_blank" class="custom-link">External link</a>
  111. <a href="https://www.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  112. <a href="https://www.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  113. <a href="https://296824514354-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  114. <a href="https://747526563546-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  115. <a href="https://722853683275-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  116. <a href="https://627163637490-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  117. <a href="https://046491173459-gov.iliiili.com/" target="_blank" class="custom-link">External link</a>
  118. <a href="https://717045618324-gov.digwow.net/" target="_blank" class="custom-link">External link</a>
  119. <a href="https://698437442192-gov.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  120. <a href="https://219654526330-gov.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  121. <a href="https://991734204047-gov-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  122. <a href="https://892112343308-gov-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  123. <a href="https://761404594678-gov-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  124. <a href="https://108513393614-gov-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  125. <a href="https://849270056207-edu.iliiili.com/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  126. <a href="https://657124935896-edu.digwow.net/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  127. <a href="https://236507082919-edu.free-giftcodes.com/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  128. <a href="https://915645311123-edu.gifthub.com.ru/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  129. <a href="https://627116730390-gov.iliiili.com/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  130. <a href="https://099290292856-gov.digwow.net/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  131. <a href="https://397400862583-gov.free-giftcodes.com/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  132. <a href="https://157196295125-gov.gifthub.com.ru/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  133. <a href="https://link.naver.com/bridge?154439079829&amp;url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  134. <a href="https://link.naver.com/bridge?806155470290&amp;url=https://naver806155470290-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  135. <a href="https://link.naver.com/bridge?819432947391&amp;url=https://naver819432947391-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  136. <a href="https://link.naver.com/bridge?298271261877&amp;url=https://naver298271261877-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  137. <a href="https://link.naver.com/bridge?424443425478&amp;url=https://naver424443425478-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  138. <a href="https://link.naver.com/bridge?763592622540&amp;url=https://naver763592622540-gov.digwow.net" target="_blank" class="custom-link">External link</a>
  139. <a href="https://link.naver.com/bridge?666854596041&amp;url=https://naver666854596041-gov.iliiili.com" target="_blank" class="custom-link">External link</a>
  140. <a href="https://link.naver.com/bridge?494931817167&amp;url=https://naver494931817167-gov.1717173.xyz" target="_blank" class="custom-link">External link</a>
  141. <a href="https://link.naver.com/bridge?439693660345&amp;url=https://naver439693660345-gov.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  142. <a href="https://link.naver.com/bridge?705409548032&amp;url=https://naver705409548032-gov-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  143. <a href="https://link.naver.com/bridge?123940684553&amp;url=https://naver123940684553-gov-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  144. <a href="https://link.naver.com/bridge?929064634184&amp;url=https://naver929064634184-gov-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  145. <a href="https://link.naver.com/bridge?138942255559&amp;url=https://naver138942255559-gov-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  146. <a href="https://blog-617073365371.gifthub.news/" target="_blank" class="custom-link">External link</a>
  147. <a href="https://blog-735143657551.jp-edu.sbs/" target="_blank" class="custom-link">External link</a>
  148. <a href="https://blog-877332204001.kr-edu.sbs/" target="_blank" class="custom-link">External link</a>
  149. <a href="https://blog-348975058673.krlinkedin.sbs/" target="_blank" class="custom-link">External link</a>
  150. <a href="https://blog-039794972706.mit-edu.sbs/" target="_blank" class="custom-link">External link</a>
  151. <a href="https://blog-026427561359.mit-edu.buzz/" target="_blank" class="custom-link">External link</a>
  152. <a href="https://blog-964722126005.mit-edu.tech/" target="_blank" class="custom-link">External link</a>
  153. <a href="https://blog-502783485028.mit-edu.site/" target="_blank" class="custom-link">External link</a>
  154. <a href="https://blog-784929815398.mit-edu.top/" target="_blank" class="custom-link">External link</a>
  155. <a href="https://blog-501102753931.usa-gov.top/" target="_blank" class="custom-link">External link</a>
  156. <a href="https://research-279882650152.mit-edu.pp.ua/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  157. <a href="https://research-133763523743.harvard-edu.pp.ua/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  158. <a href="https://research-919302430428.stanford-edu.pp.ua/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  159. <a href="https://research-694709912389.cambridge-edu.pp.ua/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  160. <a href="https://research-642016317348.berkeley-edu.pp.ua/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  161. <a href="https://research-692634403873.oxford-edu.pp.ua/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  162. <a href="https://research-875014078270-edu.wwv.pp.ua/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  163. <a href="https://research-812556416679-edu.sean.pp.ua/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  164. <a href="https://research-020417895306-edu.line.pp.ua/?url=https://318634.mit-edu.top/post/6052839714" target="_blank" class="custom-link">External link</a>
  165. </p>
  166.                    <div class="row mt-5 pt-5 border-top">
  167.                    </div>
  168.                </div>
  169.            </div>
  170.        </div>
  171.    </div>
  172.    <div class="section pb-0">
  173.        <div class="container">
  174.            <div class="row">
  175.                <div class="col-lg-12">
  176.                    <h2 class="heading">Related</h2>
  177.                </div>
  178.            </div>
  179.            <div class="row justify-content-center">
  180.                <div class="col-lg-12">
  181.                    <div class="post-entry d-md-flex small-horizontal mb-5">
  182.                        <div class="me-md-5 thumbnail mb-3 mb-md-0">
  183.                            <a href="https://318634.mit-edu.top/post/6582901374">
  184.                            <img src="https://x.mit-edu.top/static/images/post/2.jpg" alt="Deep Graph Neural Networks for Modeling Social Interactions in Multiplayer Games" title="Deep Graph Neural Networks for Modeling Social Interactions in Multiplayer Games" class="img-fluid lazyload">
  185.                            </a>
  186.                        </div>
  187.                        <div class="content">
  188.                            <div class="post-meta mb-3">
  189.                                <a href="https://blog-6582901374.mit-edu.top/post/6582901374/" target="_blank">
  190.                                <span class="date">2025-02-04</span>
  191.                                </a>
  192.                            </div>
  193.                            <h2 class="heading"><a href="https://318634.mit-edu.top/post/6582901374">Deep Graph Neural Networks for Modeling Social Interactions in Multiplayer Games</a></h2>
  194.                            <p class="info">This study applies social network analysis (SNA) to investigate the role of social influence and network dynamics in mobile gaming communities. It examines how social relationships, information flow, and peer-to-peer interactions within these communities shape player behavior, preferences, and engagement patterns. The research builds upon social learning theory and network theory to model the spread of gaming behaviors, including game adoption, in-game purchases, and the sharing of strategies and achievements. The study also explores how mobile games leverage social influence mechanisms, such as multiplayer collaboration and social rewards, to enhance player retention and lifetime value.</p>
  195.                            <a href="https://318634.mit-edu.top/post/6582901374" class="post-author d-flex align-items-center">
  196.                                <div class="author-pic">
  197.                                    <img src="https://x.mit-edu.top/static/images/user/18.jpg" alt="Deep Graph Neural Networks for Modeling Social Interactions in Multiplayer Games" title="Deep Graph Neural Networks for Modeling Social Interactions in Multiplayer Games" class="lazyload">
  198.                                </div>
  199.                                <div class="text">
  200.                                    <strong>Patricia Brown</strong>
  201.                                    <span>2025-02-04 published post</span>
  202.                                </div>
  203.                            </a>
  204.                        </div>
  205.                    </div>
  206.                </div>
  207.                <div class="col-lg-12">
  208.                    <div class="post-entry d-md-flex small-horizontal mb-5">
  209.                        <div class="me-md-5 thumbnail mb-3 mb-md-0">
  210.                            <a href="https://318634.mit-edu.top/post/9835270164">
  211.                            <img src="https://x.mit-edu.top/static/images/post/11.jpg" alt="Digital Empathy Through Mobile Game Storytelling: A Psychological Perspective" title="Digital Empathy Through Mobile Game Storytelling: A Psychological Perspective" class="img-fluid lazyload">
  212.                            </a>
  213.                        </div>
  214.                        <div class="content">
  215.                            <div class="post-meta mb-3">
  216.                                <a href="https://blog-9835270164.mit-edu.top/post/9835270164/" target="_blank">
  217.                                <span class="date">2025-02-04</span>
  218.                                </a>
  219.                            </div>
  220.                            <h2 class="heading"><a href="https://318634.mit-edu.top/post/9835270164">Digital Empathy Through Mobile Game Storytelling: A Psychological Perspective</a></h2>
  221.                            <p class="info">This research examines the role of mobile game developers in promoting social responsibility through ethical practices and inclusivity in game design. The study explores how developers can address social issues such as diversity, representation, and accessibility within mobile games, ensuring that games are accessible to players of all backgrounds, abilities, and identities. Drawing on ethics, cultural studies, and inclusive design principles, the paper evaluates the impact of inclusive game design on player experiences, with particular focus on gender, race, and disability representation. The research also investigates the role of mobile games in fostering positive social change, offering recommendations for developers to create more socially responsible and inclusive gaming experiences.</p>
  222.                            <a href="https://318634.mit-edu.top/post/9835270164" class="post-author d-flex align-items-center">
  223.                                <div class="author-pic">
  224.                                    <img src="https://x.mit-edu.top/static/images/user/8.jpg" alt="Digital Empathy Through Mobile Game Storytelling: A Psychological Perspective" title="Digital Empathy Through Mobile Game Storytelling: A Psychological Perspective" class="lazyload">
  225.                                </div>
  226.                                <div class="text">
  227.                                    <strong>Amanda Evans</strong>
  228.                                    <span>2025-02-04 published post</span>
  229.                                </div>
  230.                            </a>
  231.                        </div>
  232.                    </div>
  233.                </div>
  234.                <div class="col-lg-12">
  235.                    <div class="post-entry d-md-flex small-horizontal mb-5">
  236.                        <div class="me-md-5 thumbnail mb-3 mb-md-0">
  237.                            <a href="https://318634.mit-edu.top/post/4786901532">
  238.                            <img src="https://x.mit-edu.top/static/images/post/4.jpg" alt="Gamified Approaches to Enhancing Productivity in Virtual Work Environments" title="Gamified Approaches to Enhancing Productivity in Virtual Work Environments" class="img-fluid lazyload">
  239.                            </a>
  240.                        </div>
  241.                        <div class="content">
  242.                            <div class="post-meta mb-3">
  243.                                <a href="https://blog-4786901532.mit-edu.top/post/4786901532/" target="_blank">
  244.                                <span class="date">2025-02-04</span>
  245.                                </a>
  246.                            </div>
  247.                            <h2 class="heading"><a href="https://318634.mit-edu.top/post/4786901532">Gamified Approaches to Enhancing Productivity in Virtual Work Environments</a></h2>
  248.                            <p class="info">This research examines the concept of psychological flow in the context of mobile game design, focusing on how game mechanics can be optimized to facilitate flow states in players. Drawing on Mihaly Csikszentmihalyi’s flow theory, the study analyzes the relationship between player skill, game difficulty, and intrinsic motivation in mobile games. The paper explores how factors such as feedback, challenge progression, and control mechanisms can be incorporated into game design to keep players engaged and motivated. It also examines the role of flow in improving long-term player retention and satisfaction, offering design recommendations for developers seeking to create more immersive and rewarding gaming experiences.</p>
  249.                            <a href="https://318634.mit-edu.top/post/4786901532" class="post-author d-flex align-items-center">
  250.                                <div class="author-pic">
  251.                                    <img src="https://x.mit-edu.top/static/images/user/5.jpg" alt="Gamified Approaches to Enhancing Productivity in Virtual Work Environments" title="Gamified Approaches to Enhancing Productivity in Virtual Work Environments" class="lazyload">
  252.                                </div>
  253.                                <div class="text">
  254.                                    <strong>Jonathan Torres</strong>
  255.                                    <span>2025-02-04 published post</span>
  256.                                </div>
  257.                            </a>
  258.                        </div>
  259.                    </div>
  260.                </div>
  261.            </div>
  262.        </div>
  263.    </div>
  264.    <div class="py-5 bg-light mx-md-3 sec-subscribe">
  265.        <div class="container">
  266.            <div class="row">
  267.                <div class="col-lg-12">
  268.                    <h2 class="h4 fw-bold">Subscribe to newsletter</h2>
  269.                </div>
  270.            </div>
  271.            <form class="row">
  272.                <div class="col-md-8">
  273.                    <div class="mb-3 mb-md-0">
  274.                        <input type="email" class="form-control" placeholder="Enter your email">
  275.                    </div>
  276.                </div>
  277.                <div class="col-md-4 d-grid">
  278.                    <input type="submit" class="btn btn-primary" value="Subscribe">
  279.                </div>
  280.            </form>
  281.        </div>
  282.    </div>
  283.    <div class="site-footer">
  284.        <div class="container">
  285.            <div class="row justify-content-center copyright">
  286.                <div class="col-lg-7 text-center">
  287.                    <div class="widget">
  288.                        <p>Copyright &copy;
  289.                            <script>document.write(new Date().getFullYear());</script> All rights reserved.
  290.                        </p>
  291. <p>
  292.    < Top VPS Hosting Choice ><br>
  293.    <a href="https://evolution-host.com?ref=DQgZ6P" target="_blank">
  294.        <img src="https://x.mit-edu.top/static/images/evolution-host.png" alt="Evolution Host" title="Evolution Host" class="evhost lazyload">
  295.    </a>
  296. </p>
  297.                    </div>
  298.                </div>
  299.            </div>
  300.        </div>
  301.    </div>
  302. </body>
  303.  
  304. </html>

Home · About · News · Docs · Terms

 
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda