http://www.infoq.com/presentations/Big-Data-Architectures-at-Facebook

http://www.javacodegeeks.com/2012/07/fixing-bug-is-like-catching-fish.html

http://www.infoq.com/presentations/Building-User-Interfaces-with-Seesaw#user-dropdown

http://docs.oracle.com/javase/tutorial/java/javaOO/enum.html