A bit off topic, but seatgeek seems like a really impressive engineering organization. They pump out some seriously useful code and articles. Examples:

http://chairnerd.seatgeek.com/oauth-support-for-nginx-with-l...

https://github.com/seatgeek/sixpack

https://github.com/seatgeek/fuzzywuzzy

https://github.com/seatgeek/djjob

https://github.com/seatgeek/soulmate

http://chairnerd.seatgeek.com/spatial-data-structures-for-be...

That's enough ass kissing for me. But they deserve some serious props for all the open source work they're doing.