Rather than type your message and wait for a reply, why didn't you just type it in here: http://www.google.com/search?q=What...s=org.mozilla:en-GB:official&client=firefox-a It's either of two things. 1) You want to get your post count up so you can post sig links or 2) You are really dim and should stay away from datafeeds for a while.
I agree that there are many answers that can be found through Google, but just because you don't know what a datafeed is doesn't mean that you should stay away from them.
Source: "A Practical Guide to Affiliate Marketing: Quick Reference for Affiliate Managers & Merchants" (1st edition), author: Evgenii "Geno" Prussakov (yes, that's myself). Hope this helps. Geno
Hey DP affiliates Geno's is one of the top contacts in the affiliate marketing industry. So pick his brain to boost your affiliate revenue !!