How Do You Find A Niche At Social Networking Sites

Instead of going to each site like facebook,Digg, Myspace,Twitter whats
the best way to find a profitable niche where other marketers are
having success at for cpa & affiliate programs.

 

Just join forums like this one and ask questions - the more you ask the more you will find out

 

i made a post a while ago on some good niches to implement cpa networks. let me see if i can find it.



edit:
here is the link http://forums.digitalpoint.com/showthread.php?t=1558637