Good luck with your search. Most of those free 2.0 style sites add your link within the content section which eventually scrolls off of the index page. That's not going to help very long and might leave your site ranking like a YO-YO in the serps.
“If you can convince the lowest white man he’s better than the best colored man, he won’t notice you’re picking his pocket. Hell, give him somebody to look down on, and he’ll empty his pockets for you.”
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