I'm imagining the #fediverse being used as a sort of search engine, with a human-sorted index. Like a distributed #DMoz. For example, say users who recommend a novel in a post include the hashtag #goodnovel, and other hashtags for, maybe, author, genre etc. Then another user can search for novels to read across their social network, maybe with the ability to specify degrees of separation.
At present, doing a search on #novel brings up all sorts of intriguing stuff, but almost no novel recommendations.
