Put them back on. However experiment with your ads. Experiment with ad placement, colour, etc. Use channels to track results. Do it all one step at a time. Start with 1 ad unit, and keep working from there.
Like me I guess a lot of you have been looking for the most up to date list of top paying Adsense Keywords. I have looked everywhere on ebay google yahoo but they are going for $49 to $399. I don't know but I am not paying that to find out is junk. I found an alternative this site Webmaster-Talk.com Webmaster Forum - Web Design, Coding, SEO Forums offer the mostrecent list free. Well they have a donation button. I click it and it was for $5. While the list is worth it I just click on a pair of adsense ads that I was interested on so I guess he will be satisfield. Trust me I find a lot of good words to make some content to see if I breake to the $100 and finally get a Google check Jejejeje.