On: Mibbit (axod's startup) video featured on Google Code Blog

Care to share more? I would love to know how much money they are making.

Well, I don't have the exact numbers... but the main message was that the revenue in comparison to other ad channels was insignificant (!).

This is hardly surprising given the massive scale of adsense (content and search networks).

It doesn't mean it's not a large absolute number though.

It is not a large number, and they do have a lot of inventory. The ads are just not as effective. Also, 3rd parties (aka you and me) do not get these ads, nor would we get the great pricing that google does.

So, to be clear, this is the fringe.