WebGuerrilla has the scope that Zawodny Says No to Link Condoms.
If you go to the well known blogger and Yahoo! employee's blog, http://jeremy.zawodny.com/blog/ - you will see "sponsored links" in place of his Google AdSense.
WebGuerrilla notes that this can be a major set back for Matt Cutts, of Google, war on link selling.
There goes Yahoo! and Google working together on the nofollow tag and link spam war.