Thanks
Collije
When directly visiting
http://www.amazon.com you're going to get something like the "ref=sr_8_67_1/103-4003556-5297440" link Collije mentioned. It's easy to say that is not a affiliate link, and feel safe posting it, but there are affiliate links that can look just like it. Example:
1. Amazon makes things easy by allowing affiliates to basically choose their own affiliate ID, and to drop their ID right on the end of most page links on their sites. Most sites' affiliate IDs are extremely easy to spot, as they tend to have a descriptive ID. This would be a fully-functional referral link, were there such a site (although that description aptly describes many of them):
http://www.amazon.com/exec/obidos/ASIN/XXXXXXX/unoriginalbargains
2. Even after clicking on that hypothetical link and visiting that page, it will still be relatively easy to identify that it's an affiliate link. It would appear like this:
http://www.amazon.com/exec/obidos/ASIN/XXXXXXX/ref=ase_unoriginalbargains/104-2787124-0371960
3. From there, it becomes difficult. Leave that page, and the affiliates' friendly ID drops off the link and becomes coded:
http://www.amazon.com/exec/obidos/t...-/tech-data/ref=e_de_a_td/104-2787124-0371960
4. This means an affiliate could conceivably loop back around to the original product page and maintain the referral without anyone being the wiser. It would simply look like this:
http://www.amazon.com/exec/obidos/ASIN/XXXXXXX/104-2787124-0371960
So remember kids: ALWAYS hack everthing off after the ASIN number. It's easy, it's safe, and it works...and never run while holding scissors.