Videomanager is a Web-based video manager. It's not a Youtube/Vimeo clone, it just provides the core functionality of uploading, converting, and displaying videos. Commercial support is also available, as well as enterprise features like distributed rendering, tracking, and live streaming.
OpenLaunch is a Web-based content management system that integrates a broad array of services into a single, fully-featured, elegantly designed Web site. The project aims to eliminte the difficulty of integrating multiple systems into a single Web site by implementing a blog, forum, Web pages, wiki, and (coming soon) E-Commerce and support tickets. It is built around the Torpedo Framework, an open MVC framework which includes support for controllers, forms, and a large number of other very useful utilities.