FilmForge is a distribution (or profile) of the Free/Libre Open Source Softare content management system Drupal, tailored to the needs of videomaking communities. FilmForge makes it simple to install and run your own video sharing site.
FilmForge has a publicly viewable test install at http://filmforge.koumbit.net.
For developers working on the project, or for those interested in looking under the hood, there is a list of To Do items and development notes here: http://wiki.koumbit.net/FilmForge/ToDo.
For those who want to help maintain the FilmForge drupal installation profile, it lives here: http://wiki.koumbit.net/FilmForge/DrupalProfile.