TED talks are always available at TED.com and there are some great theme-based playlists like TED Talks for Teachers on YouTube.
If you haven't yet met TED ... your time has come!
UPDATE: IN CASE YOU MISSED IT, click HERE for the FULL episode!
I loved the whole episode, but especially this talk!
Watch Rita Pierson: Build Relationships With Your Students on PBS. See more from TED Talks Education.