Summary:

Yammer has raised $10 million in a second round of funding led by Emergence Capital; serial angel investor Ron Conway, along with existing…

Yammer

Yammer has raised $10 million in a second round of funding led by Emergence Capital; serial angel investor Ron Conway, along with existing investors Charles River Ventures and Goldcrest Investments also participated in the round.

Essentially a Twitter for businesses, Yammer lets co-workers communicate with each other by sending out short messages detailing what they are working on. A basic version is free, while businesses pay between $3 and $5 per user a month for additional features. The company says its service is being used at more than 60,000 organizations worldwide. (Full disclosure: We’ve been using Yammer to communicate internally — with some success — for several weeks now).

With the new funding, Yammer will have raised $15 million since its launch in September 2008. Yammer most recently raised $5 million in a first round last January. The company says it will use the new cash to “accelerate product innovation and increase sales coverage.” Here’s the release, via AllThingsD.

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