Business Insider is reporting Google has acquired social group startup Fridge. Fridge was apart of Y-Combinator, and announced it was closing its doors last week. Last night, Fridge told BI that they have been acquired by Google for an undisclosed amount.

Specifically, Fridge was acquired for Google+. Fridge’s four man team will begin working on the product starting next week, and we assume since they are a social group startup, their primary focus will be around Circles.