Just so you guys know, with 1 niche site and over 2K+ back links my site hasn't made a cent. It's not even showing up in the top 50 on Google. Only $27 spent, but maybe having a recommended number of sites to purchase wouldn't be a bad idea. I certainly wasn't expecting anything astronomical with this, but thought I would at least make back the $27. I should also mention that in addition to the back linking, I've had Viral Content Magician working 24/7 pulling relevant content from Youtube, Yahoo Answers, and other sources.