Ads, ads, ads

I have to make a personal observation. It regards my fellow geeksters on the Information Superhighway with personal web sites. Actually it is a question - how much revenue do you draw from such services as Google and Yahoo ads? I admit I have a minimal Google ads presence sprinkled conservatively through my sites. I don't have them back on my blog just because I have been too busy to add them since I upgraded WP. Personally, I am not going to buy a new yacht from the proceeds. More like a Happy Meal from McDonalds. It just kills me that people can rant and rave about ads and yet weave a block of text ads in between every blog entry. Hello? My personal surfing preferences lead to backing out of a site when I see this. I find it humorous at what ads are presented with respect to the content on the page. I was just looking at a very nice Fedora Core 4 installation guide and the ads (far too many) were for VoIP services. I couldn't find a single reference on the page (or his whole web site for the matter) dealing with Internet telephony services. So, I ask how much do you financially gain from the multiple repititions of text ads?