Investor Name	Invest Money	Lead Investor	Propotion
General Atlantic	-	Yes	-	Detail
Bessemer Venture Partners	-	-	-	Detail
New Enterprise Associates	-	-	-	Detail
Sapphire Ventures	-	-	-	Detail
Scale Venture Partners	-	-	-	Detail
Social Capital	-	-	-	Detail

Announced Date	Round	Money Raised	Investors
Oct 28, 2011	Series D	$ 81M	Andreessen Horowitz,Bessemer Venture Partners,etc.	Detail
Sep 1, 2005	Angel	$ 350K	Mark Cuban	Detail
Oct 15, 2009	Series B	$ 7.10M	U.S. Venture Partners	Detail
Oct 1, 2006	Series A	$ 1.50M		Detail
Feb 24, 2011	Series D	$ 48M	Andreessen Horowitz,Emergence,etc.	Detail
Apr 7, 2010	Series C	$ 15M	Scale Venture Partners,U.S. Venture Partners	Detail
Jan 23, 2008	Series B	$ 6M	U.S. Venture Partners	Detail