I decided to give MongoDB a try on a brand new rails project. It was also a change to get a bit familiar with the upcoming Rails 3 (there’s a release candidate now \o/).

I found two MongoDB adapters for rails: MongoMapper and Mongoid. Here’s an article with a comparison (thanks Tomé Duarte). After trying out the two on a really simple use case, I preferred working with Mongoid for 3 reasons:

I also used MongoHQ to try out their free plan for cloud hosting service. It’s very easy to use, but I’m still waiting for a good MongoDB front-end for inspecting my databases.