Google is at least as interested as you are in having your ads perform well on your site. And they've gone to some work to provide the information you need to optimize your AdSense.What's fascinating to me is that apparently not everyone bothers to read their tips. And even some that do, fail to apply it.That said, you need to be aware that simply using their tips doesn't guarantee successful ads and decent CTR (Click Through Rate). How many times have you heard this? You have to test. You.