The Neo4j blog is the company's official blog on its graph database, covering releases, Cypher, and use cases.
HN commenters link it for Neo4j's use in social network cases like Diaspora, interactive GraphGist examples, and edition licensing details.
Please note that this post talks about Neo4j Community. Neo4j is now split into three editions:
* Neo4j Community, a high performance, fully ACID transactional graph database – licensed under the GPL
* Neo4j Advanced, adding advanced monitoring – licensed under the AGPL or a commercial license
* Neo4j Enterprise, adding online backup and High Availability clustering – licensed under AGPL or commercial
See more in the 1.3 announcement (http://blog.neo4j.org/2011/04/neo4j-13-abisko-lampa-released.html) and our licensing guide (http://neo4j.org/licensing-guide/).
See http://blog.neo4j.org/2013/11/why-graph-databases-are-best-tool-for-handling-connected-data-like-diaspora.html on how to use Neo4j for the mentioned Diaspora cases (Neo4j was actually proposed back in 2010 to the team). Comments are very welcome.
Max de Marzi created some beautiful visualizations using d3.js for the Neo4j Heroku Challenge (http://blog.neo4j.org/2012/03/heroku-challengers-vote-now.html).
For interactive neo4j examples see:
http://blog.neo4j.org/2013/10/the-first-graphgist-challenge-completed.html?m=1