A WebmasterWorld member is afraid of having affiliate images on his website because he has seen that many sites with similar listings have been dropped out of the SERPs. Should he follow suit?
It's possible, says tedster:
I can't say with 100% certainty, but this wouldn't surprise me, either. Google is very wary of affiliate sites and wants them to add significant and unique value when they appear in the SERPs, over and above "default affiliate content". So serving anything at all from the affiliate's server might at least raise a flag.
Therefore, you should take caution and try to eliminate it if you're afraid. It's better to be safe than sorry.
Adam Lasnik commented on an earlier WebmasterWorld post (in 2006) to reflect this sentiment. If the links are related, great. If they're not and a Googler would review the page, you may not do so well. As tedster says, read between the lines.
Forum discussion continues at WebmasterWorld.