as Wizdom already said, it's important to run a clean site. If I had the $600 to spend for every site I make, I'm sure that all of them will be listed, since they're ultra clean(that's the bad with me). Make sure you have the appropriate metatags on your pages because the reviewer might check them and you don't want to see irrelevant ones. Yahoo don't uses the metatags on it's service since it's an index, but google (his fat sister) does. If you have an exit button link it to yahoo! There are still fool reviewers alive :-)
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