social networks

well, the we based social networking became an essential part of business life and business networks seem to be the platforms where lots of business people organize their contacts and try to find new customers, employees or just guys with the same ideas.
being german my first really used network was openbc now named xing and i still have my profile there. however, being in new zealand now i realized that xing is only known by the germans living here which makes the "offline" meetings more a meeting of the german community. nothing bad, just not the thing i expected.
well, some time ago i registered already a profile at linkedin and i get more and more requests to join groups and accept contacts there now so it looks like i have to move my contacts from xing to linkedin. that is a pain and takes time and made me remember the articles that i read over at o'reilly radar about opening the social graph and freeing the data and so on. in fact, i would rather write a "converter" than to do it by hand. probably it is time to write a "meta social network" and that is not the kind of approach that google went with "open social".
a meta network would need to act like a crawler, searching all your networks and contacts and presenting them in a unified way, like google but personalized. you have just one instant messenger for all the im icontacts in all the networks why should you have an hand full of social networks that you check separately? the thing i wonder is the evolution of those networks. will i still update my xing profile in say two years? how many orphaned profiles are in those networks already and how much value are they really?
social networks are great but still a bit beta.