Upcoming Products for Affliations

Hello there everyone i need to ask an important question i have been struggling with since day one i start working with affiliates programs , is there any way to know about upcoming products in affiliation market mainly on health ,weight loss, skin care ,brain etc like we need to know the source its very convenient for SEO & Rank Sooner then product release some people are doing this but i have no idea how they are doing it any help please!

This site shows new releases in the clickbank market: http://cbengine.com/new-clickbank-products.html

If you sign up with sellhealth and markethealth or any other health affiliate site, you should get e-mails notifying you of new releases