StumbleUpon is a great firefox extension where you randomly find yourself at really interesting sites just by the press of a button. They're interesting cause they're rated by a whole community of stumblers. Sometimes when stumbling, you get to find real gems of short films, the following are a selection of those I really like.
 

Welcome to FilmSoc's (currently empty) online database of shorts made by the members of FilmSoc! If you want a film that you've made linked from the site, email the mailing list and I'll put it up!