Enterprise Twitter-clone Yammer secures $10 million more in funding

Things seem to be going well for Yammer. The  Twitter-for-business service announced that it has grabbed another $10 million in a second round of funding.

Launched in September 2008, Yammer initially appeared to be just a simple Twitter clone that targeted businesses. The company has since gone on to implement many features that Twitter fans would surely appreciate, including a threaded discussion view, built-in file and photo attachments, and tags. Yammer says that over 60,000 organizations globally have adopted the service.

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The site offers free and paid versions of their service — with the Yammer gold level at $5 per user, per month.

The service’s simplicity and trouble-free set up is likely appealing to businesses that can’t be bothered to manage another IT service, but it’s not the only enterprise-level micro-blogging solution. Organizations with the wherewithal to maintain their own solution have a slew of open source applications to choose from, including StatusNet, JaikuEngine, and TypePad Motion.

Emergence Capital Partners led the round, and general partner Jason Green also joined Yammer’s Board of Directors. Other investors include the Ron Conway-led SV Angel, Charles River Ventures, and Goldcrest Investments. The latter two also previously raised $5 million for Yammer.