Let me say this more emphatically:
The people who buy ads on Google, and that are run on this site measure their results. They WANT you to click on the ads, and are happy to pay 50 cents or whatever, when you do.
If you click on WF banner ads, not only does WF get a little money, but the advertiser says "we should buy more on that site." It's a win/win. And it costs you nothing.
Plus there are some good companies advertising here. ETrailers, JPFreek (did they change their name?) -- good guys.