wooga, the company behind the popular Brain Buddies application, announced today that they have secured $7.5 million from Balderton Capital as a follow-up to the first round of funding from Holtzbrink Ventures we covered earlier this year. Since August, Brain Buddies has surpassed Playfish’s popular “Who Has The Biggest Brain?” application. With Playfish’s $400 million sale to Electronic Arts earlier this week, it’s not surprising to see additional signs of investor confidence in the social gaming space.

Months after the first round of funding, wooga is still a one game company although they’ll be releasing their second title later this winter. Those social gaming companies that provide high quality experiences for users should continue to have a bright future ahead of them. Playfish’s exit this week illustrated just how large of a space social gaming has become and with the top applications on Facebook continuing to be social games, one would assume that we’ll continue to see growth in this area.

The latest round of funding will be used to hire more employees, including the 14 job openings posted on the company’s website.