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

I know this might seem like an odd place to point to but, Heroku has recently gone nuts with their noSQL offerings and have an OK overview of many of the current projects. It is in no way a Slideshare press but it will help you start the comparison process:

http://blog.heroku.com/archives/2010/7/20/nosql/?utm_medium=email&utm_source=EmailBlast&utm_content=619506254&utm_campaign=HerokuSeptemberNewsletter-VersionB&utm_term=NoSQLHerokuandYou