Reading Twitter's Tea Leaves: At $11B Valuation, IPO Prep May Start In Late 2013

http://gawker.com/5891675/

"A source with close knowledge of Twitter's financials leaked us revenue, profit, and other figures from the company's recent past. They are not encouraging."

Jan. 2011 – Apr. 2011

Revenue: $23.8 million

Net loss (non GAAP): ($25.8 million)

Jan. 2010 – Dec. 2010

Revenue: $28.5 million

Net loss: ($67.8 million)