So, in case I've not made it completely clear by now, your keyword would be Red Sox baseball caps, and then when they get to your site, your headline would be something like "Every available Red Sox baseball cap on the market at the lowest prices...or whatever. Then of course, the page would be full of exactly that.

The beauty of this is each of these phrases are longer tailed, which means they will be easier to rank for, they would be lower cost if doing PPC, and because they are more targeted, they would have a higher conversion rate. This is how 10 targeted visitors can out sell 100 un-targeted visitors.

Then all you need to do is move onto the next product, team, category or whatever, and rank for that phrase too (and repeat).

Ok, it is a bit more clean cut for physical products right? This is because the phrase often has the brand name and / or the product name in it. But most newbie marketers start by promoting Ebooks from Clickbank.