Building Web 2.0's

Hey guys, so I am planning on building 20+ Web 2.0's for my main website (money site)..

I offer several affiliate products on my main website, and I don't know if the web 2.0 network I am building out should all be about one single product or make a web 2.0 network for each product?..

Like..
Aff. product #1 = 20+ web2.0's?
Aff. product #2 = 20+ web2.0's?
Aff. product #3 = 20+ web2.0's?

Also should the web2.0 sites, be entirely about the product I am promoting?
So domain name could be example: "(brandname)BrainSupplementReview.com?"
And then only create content about that product.
Or should the web2.0 sites be more general, like "supplementreviews.com" and then create filler content about general stuff about supplements, and then create 1-2 articles about the product I am actually promoting, that directs them to my money site?

dude building them is one thing, having them indexed is another can of worlms

redbandit said:

dude building them is one thing, having them indexed is another can of worlms

Click to expand...

Yeah sure, I know.
But I don't feel like that is what my question is about.

I just want to know if I should focus on one product or two-three products?

And is it too obvious for google if the website name is the exact name of the product on each web2.0?