The ninth episode of the NoSQL Database Podcast, titled "Graphing Databases with Neo4j," features a discussion with Ryan Boyd from Neo4j about the advantages of using graphing databases, particularly how they excel at managing data relationships compared to other database types. This episode is available on major podcast platforms like Pocket Casts and iTunes, with an option to listen directly online. Listeners are encouraged to send their questions to [email protected] for further discussion. Additionally, the podcast references a prior episode focused on Oracle's NoSQL database solution and provides resources for learning more about Couchbase.