CouchDB is a document database server. Couch is an acronym, Cluster Of Unreliable Commodity Hardware.
So the CouchDB is a database where you can store an unlimited amount of couch documents. A couch document contains named fields which are lists of strings, or numbers or dates, such as a blog. CouchDB is available on the following platforms: Windows, GNU/Linux, OS X and other POSIX systems. Visit CouchDB.org to learn more about the server.
CouchDB.org In Their Own Words
“CouchDb is alpha level software. It is still missing important features, but is stable enough for testing and evaluation purposes. It’s mostly of interest to developers at this stage.”
Why CouchDB.org It Might Be A Killer
CouchDB.org has an attractive interface and the site is easy to navigate. The overview is a wikipedia styled page that goes into detail on the CouchBD database. The facts and questions section is very thorough as well.
Some Questions About CouchDB.org
CouchDB.org could feature a tour of the database so that users could see how it works. CouchDB.org could also feature a testimonials section where users could write about how effective the database is. 
