[mantas]

What could be a product only for such a specific niche?

All dentists is Cervelo market :) Even if you really really want to target specifically Chicago dentists, you’re probably better off doing a presentation at local dentists’ union or something along those lines. Or just doing old good cold calls.

As for 19 year olds, just advertise in whatever is popular among such crowd? If 18 or 20 y/o sees it, it’s probably not far off, eh?

[FredPret]

Have you ever marketed anything?

If you ever do, I hope you have an unlimited budget and time horizon to make your ideas work.

[mantas]

Why your budget and timing should take higher priority than my privacy? Arguably social coherence is at risk too since targeted ads in politics may be very nasty. Targeted ads benefit few at expense of the whole society.