Catharsis.NET.Web.Widgets is an ASP.NET MVC tag library that provides useful social media widgets that be be included on your Web pages. Web widgets are implemented as C# POCO objects that implement System.Web.IHtmlString and provide a convenient fluent interface. Extension methods for System.Web.Mvc.HtmlHelper are provided for ease of rendering. It supports Cackle, Disqus, Facebook, Google, IntenseDebate, Mail.ru, RuTube, Surfingbird, Tumblr, Twitter, Vimeo, VKontakte, Yandex, YouTube, and the VideoJS player.