Michael Blau recommends this site with links to videos for teachers.
“Bringing multimedia into the classroom is a great way to engage students in learning. Supplementing lessons, opening up new interests, and offering inspiration, online videos make for an incredible teaching tool. In 2010, we covered our favorite 100 video sites for educators, and we’ve now updated our list for 2012 with more than 100 resources and more than 25 brand new entries. Read on, and you’ll be able to check out the very best sources for educational videos on the web.” Quotation from Edudemic website.