How to decide which NoSQL technology to use?

Question

What is the pros and cons of MongoDB (document-based), HBase (column-based) and Neo4j (objects graph)?

I\'m particularly interested to know some of the typical use cas

Answer 1

Pretty decent article here on MongoDB and NoRM (.net extensions for MongoDB) http://lukencode.com/2010/07/09/getting-started-with-mongodb-and-norm/