Cbox adds a new dimension of interaction to your website or blog. Cbox is a unique chat and messaging application that brings the best features of traditional chat and tagging systems to the social web. CBox attempts to merge the features of traditional desktop IM clients with the benefits of the social web. The user interface is straightforward, the installation is a snap, and is plug-and-play because it only relies on client-side JavaScript and HTML. CBox is free, but there is a premium version available for $2.00 a month with additional features like bigger bandwidth, no ads displayed, and custom word filters. Registration required.