Yahoo Penalizing Affiliate Sites

According to a thread on Webmaster World, Yahoo is kicking out lots of affiliate sites who use merchant product data to create doorway pages.

It seems that Yahoo is penalizing or banning domains with duplicate content or affiliate links. While there is certainly some junk that needs to be cleaned out, I am concerned that there will a fair share of collateral damage from this – the removal of top notch sites that have some affiliate links.

I’m not sure of the criteria being used by Yahoo, but this is a good wake-up call to evaluate which affiliate links are working for you, and dumping those that are not providing a decent ROI.