Yes, we all hate the adware that makes it onto Windows computers. Honestly it isn't really a big problem if you don't use Internet Explorer, but I have empathy for those who suffer from adware.
Have you ever wondered what goes through the minds of the people who make this adware that everybody hates? Here's an interview with a very talented programmer who developed adware for a while. His thoughts on the subject an explanation of some of the general techniques he used are very interesting to read.