2011-05-26
Hey Bay Areans! I'll be doing a book signing in SF at Borderlands Books on June 12th. Mark your calendars!
2011-05-24
Wow. Khan Academy is my new favorite learning site. How did it take me so long to get into this?
2011-05-23
POW! Hope this makes sense. If not, enjoy the new video!
2011-05-22
Love this new video.

hi