Although I make some money off the ads that run on the site, I really don't make that much money. It is enough to pay for my hosting though, so running them has some payoff. But, I figure (like I did a while back) that the regulars who come here aren't going to be ones clicking on ads, so I inserted back in the PHP code to eliminate ads for those who are reading the site directly. Those who come from Yahoo!, Google, Ask, or MSN search engines will be the ones who see the ads. It may ruin their first impression of the site, but I think that most visitors from search engines don't really return anyways. Do you often return to a site after you have found the information that you were looking for?