Deindexed due to Bizrate/Shopzilla widgets?
So in the last few days, I've had several sites completely de-indexed by Google. Most were larger sites (greater than 100 pages). One was recently upgraded to PR2 and had close to 1000 unique visitors per day. A few others were also doing fairly well. There was a mix of older sites (over 12 mos) and a few newer ones (less than a month). All sites on the same IP address - even the ones that were not deindexed.
The only common factor among the sites that were deindexed was the presence of Shopzilla/Bizrate ads (I am an affiliate for them). The sites without the ads survived.
Has anyone seen any issues with sites showing Shopzilla/Bizrate ads recently?