I pin The help from amazon with my amazon affiliate link. And up to this post I got 34 repin and 9 like.
However, there no sales yet because I didn't place any call to action. And I didn't plan my attack.
How I see pinterest is like doing pay per click.
You need a picture and copy ads. The traffic is already there but how you engage play a key role.
I notice a simple way work with pinterest, is having a snipper site.
All the affiliate link at the snipper site and you just pin them.
Another thing I learn is, pinterest a good place to find niche.
Hope this help