@ tarun ji...
i agree with you for creating an awareness among people via sn sites.
sn sites are increasingly becoming popular in india,particularly among youths,who constitute a major proportion of indian population.
so it will prove very successful if we create awareness through social networking.
an example of it is anna hazare's step of inviting people to participate in his movement through SMS.it has become very sucessful and a substantial no of peple have joined anna and still counting........