Following a week of rumors about a Groupon buyout, it seems now that Google could be buying the small company for $2.5 billion, according to internal sources. While neither company will comment on rumors, VatorNews quotes an internal source that confirmed the news to them. This would be a big deal for the small company since it could then use Google's intensive data on maps, locations and userbase, which could allow them to expand past the current select list of cities that they cover. Also, the acquisition makes sense for Google as they've been trying to grow Google Places, and compete with the likes of Facebook.