Your service operation isn’t one-size-fits all, so your IT service management solution shouldn’t be either
The Vivantio Platform allows you to focus on the IT service management tools that make sense for your organization’s unique service model: from incident, problem and change requests, to service requests, client knowledge and asset management
Phraseanet is an Open Source Digital Asset Management (DAM) software. Web-based application intended for managing multimedia databases (photo management but also video, audio and PDF documents). Includes its own full-text / thesaurus search engine.
An opensource video/photo sharing script , Which has some functionalities of youtube,rapidshare. Uses mysql,ffmpeg,flvtool(opt),gd or ImageMagick Built on CakePHP support for both PHP4,PHP5, Windows/*nix visit: http://sharedbay.com/osshare/forums