Github and Teambox presentations font

Hi, I'm looking for this font for a quiet time now but with no success, so I decided to ask the experts. Here you have two presentations which uses this font:

http://speakerdeck.com/u/jrom/p/teambox-starting-and-learning
http://speakerdeck.com/u/holman/p/how-github-uses-github-to-build-github

It's fancy, isn't? Love it. Thanks in advance, your help is very appreciated.

Comments

First one is ">http://www.dafont.com/yanone-kaffeesatz.font?text=starting+and+learning[...

2nd image is Collegiate from K-type http://www.k-type.com/?p=435

Clearly I searched for the wrong fonts.

Thank you, you really helped making my day. It's the first one I was looking for (my fault, the second slideshow doesn't have this font on the first few slides, but rest of it does). Once again, thank you for your amazing work.