08 Jul 10
14 Nov 10 2:36 pm
they are useful as long as you make sure the links are indexed. If you create the the 300 profiles and then you leave them like that, nothing will happen.
Always make sure you ping the profiles, bookmark them, create a blogger blog and put the profiles there, create a rss feed with all your profile links and submit them to rss directories, and they will be indexed faster. They ARE powerful backlinks.