The methods I'm aware of are:
- Recommendation engines (e.g. Youtube, most social media feeds)
- Organic / constructed sequences of data (e.g. a playlist, or sorted lists using some measurement like price)
- Non-text search (e.g. search via image, sound, or geolocation)
- Stochastic (e.g. guessing a domain name, or entering some random text into a search engine and skipping 100 first suggestions)
- Automatic link traversal (e.g. a web crawler algorithm)
- Private sharing (e.g. sending a link in an email)
- Public sharing (e.g. web portal, or blogroll)
- Hybrid (e.g. algorithmic search engine results, news aggregators)
But what am I missing?
