I always like new things, last year I decided to try Google Adsense in one of my website that is www.xpsdev.com. You can read my post about this.
There are interesting things here, after several months had passed, I found the average daily income is about 5-10 USD. Previously I was not aware about this, since I am very rarely update the site, the last post I publish was on Tue, 11/09/2010.
Quite interesting because visitors of the website is less than 750 visitors per day.