Deal values Facebook at $70 bil

Investment fund GSV Capital's (GSVC) shares shot up after it invested $6.6 mil to buy 225,000 shares in the social networking site for an average price of $29.28 per share, below what shares were trading for recently on private stock exchanges. Privately held Facebook is expected to file for an initial public offering next year. In January, an infusion from Goldman Sachs (GS) valued the world's largest social network at $50 bil. Facebook didn't