From the 5 Star Blog:
Affiliate Links in Popular Blogs? Hot Topic - Yea or Ney?
Interesting discussion going right now about whether affiliate links coming from a trusted blogger, diminish the editorial value or the blogger's reputation with readers.
Blogs, Affiliate Links and Reputation Threadwatch.org "How do affiliate links affect reputation on blogs and forums? The problem is clear: Is a review, tainted by the fact that i've added an affiliate id to the link?"
http://www.threadwatch.org/node/3147#comment-18893
Read it over at Threadwatch and then come back here to discuss it.