NoSQL

For a comprehensive list check NOSQL site (link) or Wikipedia page on the topic (link).

    • Cassandra
    • CouchDB (link)
    • Hadoop / HBase
    • Membase
    • MongoDB page
    • Project Voldemort
    • RavenDB (link)
      • Intro to RavenDB (link)
    • Redis
    • Riak

Quick overviews of the above technologies: 1 (link)