Email marketing first Constant Contact announced today that it had acquired NutshellMail, an fbFund REV company, which created condensed email alerts from social networks for users.

NutshellMail allows subscribers to receive customizable updates from Facebook, Twitter, LinkedIn and MySpace on one email as often as they choose.

After 10 years of email/event marketing and online survey tools, Constant Contact said today it’s taking the next step into social media, allowing the company to “make social media marketing simple for small businesses,” according to a press release.

The company counts more than 350,000 organizations as clients and already provides social media tools such as “Join my mailing list” Facebook apps, a share bar for newsletter subscribers and tweet-able events, among others. With the new acquisition Constant Contact is set to add more social media tools in the near future, in addition to opening a Bay Area office and consequently has begun hiring.

The financial terms of the acquisition were not released.