TOP 100 TOOLS
Yammer

Yammer is a private micro-blogging service for in-company use. . In addition to microblogging there are discussion boards and users can form/join groups. There are also Yammer iPhone app and Blackberry clients.
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Website	www.yammer.com
Cost	Free
Availability	Online
2007 ranking	-
2008 ranking	-
2009 ranking	71=
Directory of Learning Tools	Microblogging tools

Comments from some of those who selected Yammer  as a one of their Top 10 Tools in 2009

• Ana Gregory

• our internal real-time messaging tool Stephanie Horden

• Sia Vogel

• Herman Post