ExactTarget Buys CoTweet, Sets Up “Social Media Lab” In San Francisco

Email marketing software giant ExactTarget has agreed to acquired CoTweet , a young company that offers a tool that enables multiple people to communicate on Twitter through corporate accounts. CoTweet will continue to operate from San Francisco as a business unit of ExactTarget , essentially taking charge of the company’s social media product development. CoTweet co-founder and CEO Jesse Engle will lead the San Francisco operation and head ExactTarget's new "social media lab". Terms of the agreement have not been disclosed, but we're digging.