Below are three of my favorite videos of all time. They’re all quite long (averaging just under an hour each), but I re-watch all of them from time to time to stay fresh on the ideas presented in them.
Scott Stratten: The Biz Media Sessions
Scott (@unmarketing) puts out a bunch of great info on how to use social media, and this video is a great overview of some of his ideas.
David Allen: Getting Things Done
I’m a big fan of GTD, and it’s greatly changed how I’ve organized my life over the past few years. David Allen is the man behind the system, and this was a talk he gave at Google a few years ago. Lots of great tips in there.
Merlin Mann: Inbox Zero
A major aspect of GTD, at least for me, is keeping my inbox completely clean. Merlin offers some great advice in this video on how to actually make it happen.
Any other great videos out there that should be on this list?

Wow, we seem to agree about 2 of these videos. Maybe I gleaned this from you. Here is my post: http://www.clickhost.com/must-see-productivity-videos/.
May your 2013 be full of abundance!
Carel.