Google Adsense Text or Image Ads - Which Makes More Money

There was a very good question proposed by a member over at Digitalpoint forum. He asked about which Adsense ads made more money, the text or image ads? Its one that I think has already been considered but not fully investigated enough yet, due to the fact that images ads are still a bit new. You also only have selected sizes for images ads such as: Leaderboard (728 x 90), Banner (468 x 60), Skyscraper (120x600), and Medium Rectangle (300 x 250). Additionally Image Ads come and go. Some in the thread mentioned that the more broad use of keywords you have on the page, the more likely a broad matched Image Ad will show up eventually.

Text or image ads performs best in Google AdSense?

Ad unit for Google AdSense can contain either text ads or image (rich media) ads, and it can also be configured to display both type of ads. The default Google AdSense setting is to display both. Some people claim that text ads perform best while some has more success with image ads. Google's advice however is to display both.

So, which type of AdSense ad unit should you use for your site?

As with other Google AdSense optimization tips, it all depends on the type of site you're running. Also note that choosing the right ad type could complement to your site's design. The following lists the pro and cons of each ad unit's type.