From my personal experience:
When you're working with affiliate programs of online stores, in my opinion, it is BEST for an affiliate/assosicate to pick stores that supply datafeeds of their products, and import them into affiliate websites (be it content websites or shopping malls, doesn't matter). Then, when your customers see product pictures and descriptions on your site (you may pick the ones you want to feature, and leave out the ones you don't), they get more interested in them (than in just plain banner and/or text links), and clicks convert to sales much-much better.
There are a number of extremely useful software applications for datafeeds import. One of these is WebMerge (a product by the Fourth World Media Corp). I am not affiliated with them. Just wanted to let y'all know that we've just launched (this happened today, on 1 November) an exclusive co-branded version of this application - "WebMergeRL" (or Russian Legacy Edition of WebMerge), which makes it easy to import our products into your sites.
Not to spam this thread, I won't say anything else (unless people ask). We have our thread in the "Promote Your Affiliate Program(s)" section of the AssociatePrograms.com boards. You can easily find us there if you're interested.
IMPORTANT: It is a fact that datafeed-based websites convert much better than banner-based ones. Be it with us, or with any other online retail store (Amazon, Overstock, eBay, anything), remember this and take your time to learn how to work with datafeeds. Time invested will inevitably pay off.
Of course, I'd be happy to discuss this claim/observation further in this thread (if there's interest in this). ;)
Hope everyone is having a prosperous week!