Hi! I know, it has been discussed many times in this forum. But, I am going to analyze this question and first of all I need to name some important features of an affiliate program: 1. It should be absolutely Free to join. 2. It must be simple to register. 3. The sign up process may not take a long time. 4. It must be available internationally. 5. It should have different payment methods. 6. The commissions must be high. 7. It should have a two-tier program. 8. The payments must be done more often. (weekly, bi-weekly) 9. It must have helpful guides, tools, resources and support. With that being said, there should be some affiliate programs that qualify to the above mentioned features. It would be nice, if you share your views, information and tips about this topic. Recommending some FREE affiliate programs would be great. Good Luck!
My favorite one is WebmasterLife. Anyway check the featured affiliate program on my blog (herbad.com)
Try Global Test Market. Very simple and conversion is good with international leads.You can join them from the affiliate networks such as offerwise.com or ourfreestuff.com
Have you heard of MoreNiche and WorldNiche? Believe me, mate these affiliate programs ROCKS! I've all what you listed but fortunately - the MoreNiche and WorldNiche support and winning marketing tools SURPASSES your expectation. Simply do this to find out yourself -- join both for free and discover yourself. Cheers