The masses of millions of small businesses selling goods/services not appropriate for late-night infomercials or who didn't even have the funds to produce/air infomercials.

I agree. Google provided a medium through which people with limited funds could market. Nothing like it before.

Still, there is a lot of space in this area. The web is currently focused on selling to first time buyers. Very little about follow up sales. My first product focuses on that. Launch soon, but will talk about it in a few days.