Their blurb is:
Earn Your IT Certificate in 2012
Only with online courses from the O'Reilly School of Technology can you master in-demand IT development skills by using programming to learn programming.
It looks pretty good with a wide range of courses.
The front page is here: O'Reilly School of Technology. Check it out. I think I might, actually, for a little refresh on technologies I haven't used in a while.