cafe press

Hi folks! I have seller account in Cafepress and Zazzle, I sell custom t-shirt! Now I'd like to know if I can sell these products on amazon as amazon seller! Anyone can help me to understand?

Does anyone have any tips or tricks about cafe press they can share? I wanted to sell some tshirts for a client, but am not sure how I can use blackhat methods with cafe press... they don't have an api (at least that I know of) so any seo I have to do on their site. Anyone have any ideas?

I have a couple of stores on Cafe Press-- some for clients (one is a rock band), one for myself-- just wondering, based on everyone's experience, what are the best ways to get traffic to your Cafe Press stores to sell product? By the way, I already tried Printfection and Shopify and found...