Networking sites

I am surprised to see the number of social networking sites that keep coming up.
Everyone with a new set of features. But I am still not able to comprehend what google is doing in this area. Orkut doesn't see to be that professional. They click for me but lack a number of features that I would like to see on a good networking site. It seems it has got caught in the beaurocracy -- of who owns what. Unless they scale it up to support important features like blogging, uploading infinite pics and videos and a better networking set-up, they just cannot beat the compitition. They are not a late entrant into this area but still lag far behind mySpace. The only reason I use it because of the number of indian users using it.