Hot off the presses from the Inside AdSense blog (the official Google blog from their AdSense team.)

On each page of your site AdSense is now able to support up to:

3 ad units

2 AdSense for search boxes

1 link unit

1 referral button per product (i.e., 1 AdSense referral button and 1 Firefox plus Google Toolbar referral button).

So if you are building a site monetized by AdSense you might be able to make a little extra money by putting in a couple of the new formats of AdSense ads. I’ve been playing around with them and have found some (like the linkbar) to be pretty darn useful!

- Ben Fitts

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