Its the site I do for work, but I'd prefer not to give it out... As an update, we had our first $1000 day yesterday
We made $1020 in one day. This month we made $22,000 from Adsense.
The reason we do so well is we have the page arranged so the most appropriate ads are displayed. It also depends on your visitor. If its a techie site, I doubt many techies click ad links (due to the amount of utter rubbish that can come of it), however less experienced users do click them.
A few things to bear in mind about google. The googlebot reads your page top to bottom. This means it weighs content at the top more important than content at the bottom. This means you should keep your headers and titles as close to the top of the page as possible. Also, I think using META tags helps out google a LOT.
Bear in mind, the site I am talking abuot gets about 250,000 hits per day. 1 weeks log files from Apache from 1 site is over 600Mb. Its an incredibly heavily used site. I've only been in charge of it for about 2 months and I am working with the current webmaster for it to move it onto a CMS.
Has anyone used a CMS they could recommend? I'm currently playing with drupal. Looks good.