Twitter is hiring a patent agent - here's why(startupsip.com)
startupsip.com
Twitter is hiring a patent agent - here's why
http://startupsip.com/2012/03/15/twitter-appears-to-be-getting-into-the-patent-race
http://startupsip.com/2012/03/15/twitter-appears-to-be-getting-into-the-patent-race