I tried the Yuwie thing for a few months, and let me tell you it was absolutely horrid. You only get paid for views of your profile. Now that wouldn't be so bad, except they have to be registered users. And can only view your profile a couple times a day and then it stops counting the hits. As well as other things they have included in their formula restricting things it's really a pain in the ass. I put everything I had into it for two months to test it out, and for the first month I made $0.10. The second month I made $0.20. So if you think you can scam their system, and hack their formula good luck, they put so many restictions on things it's not funny. And every click you do with them, there is a ad page that pops up on you, using a popunder so you have to click skip this ad, to get past it. Really the site is a pain in the ass. I stopped using it after the second month. Definitely not worth your time if you want to make any kind of money on the net. Just thought I'd share my two cents.
Cheers