title: Open Source .Net Object Database or Document Database for use in Hosted environment
body: <p>I am looking at creating a web site and I want to try and learn either a Object Database or a Document Database.   I am going to be using a hosting provider so I won't be able to install any software.  I am unable to purchase any licensing so I need to be able use either a free or open source Object/Document Database.  Are there any free Object/Document Databases that don't require installation of some sort?</p>