Twitter announces Monday that the company has bought the blogging playform Posterous. Posterous was launches in 2008 at San Francisco and is the "archrival" of Tumblr. As we learned in class, both Posterous and Tumblr as pioneered the microblogging space on the internet.
Segall, L. (2012, March 14). Cnn. Retrieved from http://money.cnn.com/2012/03/14/technology/posterous_twitter/index.htm