
This is a great post using Python, Neo4j, and Bulbflow to build a recommendation system using a graph database. It looks like they crawled SnapGuide to get their data for this.
The code for bulbflow is on GH.

Here is another post on Graph Recommendation Systems using Gremlin.
—Jason
This is an awesome presentation by Russel Jurney on building data driven applications that use big data.

Russel is in the midst of writing a book on this topic and the book is currently available for review on O’reilly’s Open Feedback Publishing System
—Jason
Great (short) presentation on “Storing Time Series Metrics With Cassandra and Composite Columns” by Joe Stein from Medialets. With code on GH.
—Jason
Nice tutorial on writing UDFs for Hive.
—Jason