In visiting subhacker to see whether there were any new mylots posts on his page, I found myself redirected to another page. Thinking of my own blog, I immediately suspected PaidToPromote. And there it was, at the bottom of his page.
I had wondered what PaidToPromote was going to do to get traffic to other sites. This, then, appears to be the explanation. On whatever page you have the code, that page will redirect onto some advertising site. This is similar to what the intermission type ad of LinkBucks does, except that instead of just being annoyed of having to wait a few extra seconds to get to the content you wanted to get to, there is no "back" button.
I have gotten rid of the google and bidvertiser ads on my blog, mostly because I did not want to promote what I thought of as garbage (scams). I thought that PaidToPromote would take a similar route, perhaps giving out better sites actually worth checking out. Since this is not the case, but worse, I can not recommend PaidToPromote. Instead, I advise avoiding it, and especially not putting it on your site.
If you see a
'http://www.777seo.com/seo.php?', it's probably a PaidToPromote redirect.