A linked bookmark blog is essentially how many use Pinterest. Discoverability in part comes from shared lists because the related items on a given page are¹ based on what other things are included in lists containing the item currently being viewed.
Pinterest has a very strong visual bias, and often a selling-things bias with the stored links being to things you can buy, so there might be a niche for something like that with features geared around links more generally, or features specifically to help editorialising links to nows and other reading matter, though preferably without deliberately poisoning search results to over-favour the link storing site like Pinterest does.
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[1] at least in part, there may be other factors like what-you-have-looked-at-before, advertising, etc.
Pinterest has a very strong visual bias, and often a selling-things bias with the stored links being to things you can buy, so there might be a niche for something like that with features geared around links more generally, or features specifically to help editorialising links to nows and other reading matter, though preferably without deliberately poisoning search results to over-favour the link storing site like Pinterest does.
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[1] at least in part, there may be other factors like what-you-have-looked-at-before, advertising, etc.