They're not. It's an affiliate program. Most large online businesses have them. It's a way to direct traffic to their site, and make a few bucks for the guy who has the link on his website.
Yeah, I just saw that in the other thread. But none-the-less, if anyone wants to boycott a company for the policies the company takes, its fine with me. Boycotting a company is not "un-American" or communist, just cause libs traditionally are the ones do it.
It's the consumer's perogative tho choose when, where, what, and how to buy products. The free-market will not die because some Christians don't want to go to Wal-Mart anymore.