Wikipedia
NutshellMail
NutshellMail is a social network aggregation service that allows users to manage and interact with updates from social networking services through a consolidated email digest. NutshellMail's mission according to its website is to keep users connected yet productive at the same time. NutshellMail supports Facebook, Twitter, MySpace, LinkedIn, and Ning.
In March 2008, PC World wrote an article suggesting that NutshellMail could allow users to streamline their social network experience LifeHacker called NutshellMail "The Sledgehammer" to filter and manage online social lives in a May 2009 article.