Hello,
Do not spam social networking sites use following points to advertise or market your stuff///..
This points will not ban you from social networking sites and your business will grow..
1) Don't spam the sites--- Make it like you are contributing to community..
2) Personal linking should be different and Professional linking should be different
3) frequently update is necessary
4) Professionalism --- Treat people like they are customer, if you are selling anything..
5) Headlines can be useful to grab attention to your website, for example-- Answer this question and win ipad...
So think and realize about these points when you submit websites to S.N. sites.. Thanks are appreciated..
Good Luck!!