I would personally agree with linkshare.com as a great affiliate marketing platform to join as a publisher. Here’s why. Back in 2005 when I knew nothing about affiliate marketing and was using blogger.com as a free blogging platform without any experience whatsoever and joining Walmart.com as my first official affiliate program, I was able to insert Walmart affiliate in its in my blogger blog and earn a $72 commission. I was onto affiliate marketing for life from there.
Another way to find this information is to do a simple Google search. For example, one could place the following phrase into Google Search: “(product name) + affiliate program”. (Replace “product name” with the name of the product you are promoting.) There is an interesting chrome addon called Affilitizer is available which makes this process easy.