I did not say it was common. I know of about 20 WebmasterWorld members that make that much. As many people that have adsense the number that make more than $10k is very tiny. If you just stick adsense on a website you will not make much. You can't just make a website on anything and make money with it. You need to do research and work very hard to do it. I have just seen several people without much web knowledge work very hard and turn a site into a very nice income. Some make way over $10K a month. Some are black hat some are very white hat. This is by no means a get rich scheme. You can make a lot of you treat it like any other business you might want to start.