http://www.lecloud.net/post/7295452622/scalability-for-dummies-part-1-clones
http://www.quora.com/Job-Interviews/How-should-I-prepare-system-design-questions-for-Google-Facebook-Interview
http://www.lecloud.net/post/7295452622/scalability-for-dummies-part-1-clones
http://www.quora.com/Job-Interviews/How-should-I-prepare-system-design-questions-for-Google-Facebook-Interview