*Current market valuation. I think it's an important differentiation. The underlying dynamics of the two companies are quite different, and I'm not sure their

*Current market valuation. I think it's an important differentiation. The underlying dynamics of the two companies are quite different, and I'm not sure their "worth" can be directly compared. One is worth a lot to the granny taking out cash from her pension fund, the other is worth a lot to the advertisers wanting to cash in on the cloud social services.