6 of 7
BuyWithMe: Boston Groupon Party
BuyWithMe: Boston Groupon Party

This me-too site started in Boston in 2009 and picked up some steam when it secured a $21.5 million during two rounds of funding last year from Matrix Partners and Bain Capital Ventures. (Up until then, the site had been privately funded by friends and family.) It uses a similar model to Groupon and Living Social, but its deals run as long as a week. And while it can't claim the sheer userbase of its big brothers yet, BuyWithMe does have some visibility -- it currently provides the deals on the news site Boston.com, owned by The New York Times Company.

NEXT: The niche players : Groupons for real groups
Last updated March 17 2011: 2:57 PM ET
Humor is integral to Groupon according to editor-in-chief Aaron With but its Super Bowl ads pushed the envelope too far. More
A company that wants to bring online storage and sharing to the masses? Hardly original, but with numbers like these, Dropbox may do just that. More
The leading daily deals site has everything going for it domestically, but that means nothing when it comes to avoiding the scrap heap other high-flying U.S. Internet companies have been tossed onto in China. More