I thought it was "only" $500M, but regardless, they're clearly gunning for an IPO. Hard to say how that will pan out, though. LinkedIn has an $8B market cap, bu

I thought it was "only" $500M, but regardless, they're clearly gunning for an IPO. Hard to say how that will pan out, though. LinkedIn has an $8B market cap, but Groupon's IPO seems stalled.