TBH I can never really understand why people get so het up about adverts... if I consider a site is too overloaded with adverts or they're too intrusive then I simply don't go there again.
For reasonable levels of adverts I suppose I could use an ad-blocker, but they're not 100% effective. Whereas the one behind my eyeballs is
I have no problems with the ads here as they are not the least bit intrusive.
I only block ads when they do
become intrusive like the ads that sometimes appear on PC Advisor.
They are so bad that they obstruct the text that you are trying to read if you accidentally hover your mouse over them!
To block them I use both the Firefox NoScript and the Adblock Plus add-on.