This is a great experimental niche search engine: search.marginalia.nu

An example search: https://search.marginalia.nu/search?query=plain+text

Quote from gemini://marginalia.nu/projects/edge/about.gmi follows.

It is a search engine, designed to help you find what you didn't even
know you were looking for. If you search for "Plato", you might for
example end up at the Canterbury Tales. Go looking for the Canterbury
Tales, and you may stumble upon Neil Gaiman's blog.

If you are looking for fact, this is almost certainly the wrong tool. If
you are looking for serendipity, you're on the right track. When was the
last time you just stumbled onto something interesting, by the way?

--
I'm not affiliated, just a fan. Thanks

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