Yes, I saw StumbleUpon early on. I just intend and hope to do better pleasing the users.
So, it's recommendation -- maybe the user has heard of the content but wants the quality of the curated results.
Uh, now the Internet has a lot of specialized content (e.g., as in this OP) and, presto, bingo, that means that there are also some specialized AUDIENCES, e.g., audiences the mainstream media (MSM), back to TV, radio, and all the larger newspapers worked hard to ignore -- instead, they went for the mass audience. One general result is, even now, floods of URLs where less than 1% are of interest to any one person. Early on a solution is to pick an audience (of course, one with good demographics), and more generally just to have better means of helping, pleasing users.
It's discovery -- the user has never heard of the content but the dialog is good evidence that they will like the results.
It's search -- the user knows about the content, it's likely famous, will recognize it once can find, see it, but doesn't know where to find it, and it's not easy to find keywords that (accurately) characterize it. Can get some examples out of the fine arts.
The "interactive, iterative dialog", particular to each use, is supposed to be a more powerful, effective way to find, get to, have URLs for content the user will like. Here like is intended to be basically, short for, like the meaning of the content. The user may like the content for entertainment, information, curiosity, etc.
It appears that now both Google and YouTube have seen the basic problem and have their versions of solutions. I'm hoping that my techniques do better where their solutions work poorly or not at all. I'm not trying to replace or compete with where Google, YouTube, Bing, ..., StumbleUpon work well. I'm a sole, solo founder and don't have to be worth billions to be successful.
Yes, my plans are for my site to be ad supported. But I intend actually strongly to follow, say, the old newspaper standard of a wall between (a) the URL results for the users and (b) the ads. E.g., as in this thread of "old Internet", at least early on, the ad targeting is supposed to be maybe from only broadly the demographics or some such of my intended audience, essentially independent of the user or the data from their dialog, or hardly targeted at all.
Right, better ad targeting could yield more revenue, and maybe the dialog data could permit some especially good ad targeting, but NO WAY do I want to have even a hint of giving users URLs that help advertisers. Some such used to be called payola and was made actually illegal.
Or, so far, the code I've written to find the URLs to report to the users has nothing about ads.
Maybe the long term situation would be that for some use instances the dialog data and the reported content URLs would do well at suggesting what ads would be especially effective but no way would ads influence what URLs are reported. Or, the connection between URLs and ads is a one way street: URLs can be used to pick ads, but ads can never pick URLs.