Thanks to Jane Heart for this list:
5min Life Videopedia – instructional and how-to videos
Academic Earth – Thousands of video lectures from the world’s top scholars
blip.tv – next generation TV network
Google Video – videos on all topics
Graspr – The instructional video network
Howcast – How-to videos
iCue – A fun, innovative, learning environment built around video from the NBC News Archives
Instructables – Make, HowTo and DIY
iTunes U – Faculty are using iTunes U to distribute digital lessons to their students, e.g Stangord, Trinity College Dublin, etc.
John Locker – Documentaries and educational videos
MindBites – Video instructional marketplace and publishing platform (Some free)
MonkeySee – HowTo videos
neoK12 – free educational videos and lessons for K-12 school kids
Research Channel – 3,500 video titles available
SchoolTube – provides students and educators with a safe, world class, video sharing webiste
Sparkeo – a flexible video platform
SuTree – learn virtually everything by watching how to videos from all over the web.
TeacherTube – educational videos
TED (Technology, Entertainment, Design) – a clearinghouse that offers free knowledge and inspiration from the world’s most inspired thinkers, and also a community of curious souls to engage with ideas and each other.
TV Lesson – How to videos
Ustream – watch live broadcasts, explore networks ranging from music, talk shows, sports and politics and/or review our past broadcasts.
Video Jug – Life explained. On film.
Vimeo – a thriving community of people who love to make and share videos
YouTube – videos on everything under the sun
YouTube EDU – aggregates all the videos from more than 100 institutions of higher education around the US.