Places to find video on a variety of topics

MovieClips - Perfect for language learners - you can select clips by genre, actor, et al. Not coprighted, and not blocked at most school sites. Only mature clips require reistration. (Thanks to Larry Ferlazzo for the recommendation.)

Larry Ferlazzo's Best Movies Scenes to Use for English Language Development - Has a brief lesson idea and excellent sources

MonkeySee - How-to videos on a wide variety of topics: car repair, gardening, etc.

Internet Archive - Creative Commons licensed digital movies uploaded by Archive users which range from classic full-length films, to daily alternative news broadcasts, to cartoons and concerts. Many of these videos are available for free download.