structr: CMS on top of Neo4j
structr :
structr is a free, open-source CMS under the GPLv3, written in Java, based on the fantastic NoSQL graph database Neo4j.
By design, structr is modular, distributed and easy to use.
structr is not yet stable, so please be patient and look out for bugs and minor (or even major) pitfalls.
If my memory serves me right, Neo4j started as a library used internally for building content management systems.
Original title and link: structr: CMS on top of Neo4j (NoSQL databases © myNoSQL)