That's because google is so popular now and other company cant fight it .. u can still find some lower paying one like : clicksor, fastclicks .. bla bla so much more and google is the highest paying
Hahaha, its great when your about to post a question, then you read down a little bit and find that someone already answered you! Lucky me. Thanks for inadvertantly answering my questions!
By the way, I love Google, not sure how much I love them slapping ads on anything they can. DEFINETLY not okay with the AOL deal...
It is in the name itself ... You get paid some amount of money for each click on your ad. Another type is Cost per impression.. Here, you will get some amount of money ,once a particular ad gets displayed for say x number of times.
If you want to know more about cost per click and infact, if you want to use it and start earning money using it in your very own site, try out Google adsense.
