I have been seeing very, very bad targeting today. Ads that have absolutely nothing to do with any page of my site have been alternating with the targeted ads. There are times when both the adblocks and adlinks are about a topic that is totally unrelated, there are times when only the adlinks are off topic, and there are times when the adlinks and one adblock are off topic but a second adblock on the same page is correct.
It's totally weird. It's totally broken. And I have had enough of the experiment where they intentionally put 1-3 ads in a 4 ad adblock. It sucks.