edX

Open source learning ?

Almost ...

https://www.edx.org/

Cheat Sheets ...

http://overapi.com/

More music ...

Music site SXSW ...

The South by Southwest® (SXSW®) Conferences & Festivals

http://sxsw.com/


And 7+ GB of torrents ...

https://sites.google.com/site/sxswtorrent/