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I saw it on a friend's computer a few nights ago. She thought there was something wrong with my pages, and didn't know about the adblocker until I showed it to her.
Links from CJ, Linkshare, BeFree, and Performics were all taken out, both banners and text links. They were completely gone from the source code, not just covered over or something. Links from independent merchants and smaller affiliate networks were not affected. I'm sure it's only a matter of time until they are too. Grrrrr ....
In Adwords, oddly, some link titles were gone and some were still there, in the same ad panel. I wasn't able to discern what made the difference.
I saw an interesting idea on another forum.
Someone there claimed that they are putting a background image ad for McAfee Anti-virus, underneath all their commission based ads.
If Norton blocks their commission based ads, the visitor sees a clickable banner ad that takes them to Norton's main competitor.