What is the difference between triplestores and graph databases?

Question

There are triplestores (semantic databases), and there are general-purpose graph databases.

Both are based on the similar concepts of linking one \"item\" to another via

Answer 1

Triples stores are graph databases. RDF is a graph. Granted, triple stores tend to not store the information internally as a graph; that's sub-optimal for query answering, but they're still graph databases.

You'd prefer them to something like neo4j if you're interested in an ecosystem based on W3C standards. Makes interop with other RDF-based systems trivial, and it makes picking up everything and moving to a different triple store quite painless.