Yammer is a private micro-sharing service for internal organisation use, but there is also the ability to create groups that those external to the company can also join. There are Yammer iPhone app and Blackberry clients to access and send messages. Acquired by Microsoft in 2012.
Yammer retains its position in the top 20 this year.
|www.yammer.com||Free to set up;
commercial to obtain admin rights
Comments from some of those who selected Yammer as a one of their Top Tools
“used to network with colleagues at my workplace. It is useful to find out what others are doing as I work in such a large organisation.” Jayne Whistance 2013
“ESN for organisational networking” Helen Blunden 2013
“business sharing” Paul Jacobs 2013
“our internal real-time messaging tool” Stephanie Horden