[tomjen3]

I have not, as far as I can remember, ever seen an ad for a useful product. What I have seen is nearly unending amounts of crap and things that I have already purchased.

When I finally got a car I got an ad for the local bus company - I know they exists, I have hated them for years. Now if there had been an add for a good way to find a parking space.

When I moved apartment I got ads for 3 months for a site that allows you to search available apartments (for a fee, of course) even long after I had moved.

Facebook also gave me an add for the exact degree I told them I had, at the university I already had it from. I only need one masters, thank you very much.

So I guess there is space for good interesting ads, at least in theory, but I don't think they exist in reality, at least not in great quantity; I also don't think they ever existed of line either.