1) Blog hosting service 
Posterous was a simple blogging platform started in May 2008, funded by Y Combinator. It was based in San Francisco. Posterous agreed to be shut down in March 12, 2012 after much of the team was acquired by Twitter on March 12, 2012. In February 2013, Posterous announced that they would be shutting down the service on 30 April 2013. Following the ...