If you want to learn social media: Mack Collier, Jason Falls, Beth Harte, Chris Brogan, Amber Naslund
If you want to go a little more high-level: Alan Wolk, David Armano, Greg Verdino, Geoff Livingston, Valeria Maltoni
If you want to learn about design/UX: Whitney Hess, A List Apart, I Love Typography, The Dieline
If you want a lesson in passion: Gary Vaynerchuck, Brains On Fire, Hugh MacLeod, Scott Monty
If you want something to think about for the rest of the day: Clay Shirky, Kevin Kelly, Noah Brier
If you want the lighter side: Bill Green, Steve Woodruff, Where’s My Jetpack?, Kaitlyn Wilkins

4 Responses and Counting...
Thanks for putting us among such smart folks. Sucks, we're even blushing.
Nice list, my friend! Thanks for the mention!
Love the idea of listing people to learn from:
Two others I would suggest in a related area to learn from:
If you want to improve your presentations:
nancy duarte author of slide:ology– http://blog.duarte.com and
garr reynold author of presentation zen –http://www.presentationzen.com/
Oh my gosh, how nice of you! It's quite an honor to be listed among such incredible people. You rock, Matt!
For more great user experience folks, check out my top 10 UX blogs:
http://www.blogs.com/topten/10-best-ux-user-exp…