Yammer, a Twitter-like messaging system for businesses, has seen solid growth since launching last week at TechCrunch50 (and taking the top prize).
CEO David Sacks says there are now 10,000 networks and 50,000 users just one week in. Yammer’s business model is to let people use the service for free, spreading it throughout the enterprise. When and if a company wants to take administrative control over the account, Yammer charges $1/user/month. Administrators can set access controls, such as IP controls and SSL.
The company already allows interaction with the service via the site, an AIR client, iPhone, Blackberry, IM, SMS and email. This evening they’ve also launched an API to allow third party developers to build Yammer into their applications. Read More
by Michael Arrington
Popularity: unranked [?]
