We started a Cassandra Users page on the Cassandra wiki - http://wiki.apache.org/cassandra/CassandraUsers - as the list of users is growing far beyond the ones people normally think about.
Please take a look and update where necessary including company/organization name, description of use case(s), and potentially a link to a blog post or press release. We realize people may not want to share their use case - that's a-okay. We're just looking for those that would - plus it's free advertising for getting your name out there :). Anyway, it's going to be linked off of the FAQ page as well as the cassandra home page. (http://wiki.apache.org/cassandra/FAQ#using_cassandra)
