According to Valleywag, Second Life maker Linden Lab has just closed another round of financing:
Linden Lab, owners of Second Life, may have done another financing round. Our tipster thinks the amount raised wasn't huge, but the valuation for the lame virtual world was "puke-inducing". How puke-inducing? The number being quoted is $750m.
Actually, given the growth and buzz that SL has had over the last year, $750 million doesn't seem that much.