I like ideas with hard data to back it up. Here is a tip that can make you more money with minimal effort.

Over at ForumTrends.com Chris Kenworthy wrote that he found out Firefox users are almost 3 times more likely to click on Google Adsense link units on the very top of a page than IE users. Why? Because Firefox users use tabs.

I have been using horizontal Adsense link units for a long time. They perform very well despite sending users to a pretty ugly page and requiring two clicks for monetization rather than one. Personally, I would love to see Google allow Adlink integration like they have done with Adsense for search.