anyone know this? I checked, but I haven't found anything that has been different from what was said so far. It is pretty much like Google's ad-sense though. I wouldn't put too much thought into it.
I know on google they do it but the alphabet I believe. They will usually list the subject just like a telephone book. I know there is other types to push your way to the top. But one way is the lettering in your business name or what not.