a couple of the sites I used to display co-op links took a hit in serps in the last couple days. This could be due to the recent G update, but for a light-weight lik me I've decided to forego it for the time being.. just too small I guess..
Quite a few people are taking hits, some with coop ads, others without. It's too early to tell what google is doing.
At moment I am not showing many links from this forum. I put footer links back about a week ago. It may be they are not yet showing up in serps. Shannon