How does FriendFeed work, and what programming languages are used?
My answer to How does FriendFeed work, and what programming languages are used? on Quora
It was written in Python, using the Tornado asynchronous web server (which the FriendFeed team developed themselves). They used their own schemaless NoSQL-style store based on keeping serialized objects in MySQL.
http://www.tornadoweb.org/http://bret.appspot.com/entry/ho...