For example if you wanted to sell dog collars, would it be best to have a multi niche site within the dog niche that also sells other dog products? Or is it best for the site to only be about dog collars, and then have a separate site selling "dog toys" for instance? Is either easier or harder when it comes to ranking? I was thinking that the multi niche dog site would look better if you were also promoting it on social networks, but I'm not sure. ----------------------------------- And the other question I have is, does it only work for amazon affiliate sites to target "Best PRODUCT TYPE" or cheap PRODUCT TYPE" etc keywords? Or can you actually target keywords like "Leather dog collars"? Because when looking at page one of google for keywords like that, plenty of eCommerce sites come up. But then again, some day I might turn the Amazon affiliate site into an ecommerce site, so is there any reason I couldn't rank for "Leather dog collars" for instance?