[klft]

Interesting feedback. Thanks!

> a lot of high-quality information isn't paid

Maybe I was biased towards paid content because I did an enterprise search project on scientific articles before.

> users could plug in sources that are particularly useful for them

That could work if you have a local copy of the data which can be indexed. E-Book DRM might be a problem.

> But maybe the userbase of people who need high quality, non-subscription info is too small to get this started.

That was my impression. I almost always got puzzled looks when I described the idea. And most of those people were “knowledge workers”. But if you are a specialist, you already know where to look for the information you need in your area of expertise.