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NeoStumble
(neostumble.neocities.org)
Community for the appreciation and sharing of links, resources, and culture of: the smol web / small web / ~(w)~ / the indie web / or even the non-www internet (gemini, gopher, etc).
Back of a napkin definition, subject to change: if it's internet accessible and is maintained by a person, especially for non-commercial aims, then I would consider it smol. There are, however, much stricter definitions.
So is it like a webring but random?
Almost. One can submit any page, and after review it will be approved or denied and added to the stumble button. The goal is to be more like the old StumbleUpon button.