The Cassandra community is a diverse group of software developers and enthusiasts collaborating to create a massively scalable, distributed database application (http://incubator.apache.org/cassandra/).
Geeks, software developers, systems engineers, technologists and IT decision makers.
Some themes pertinent to Cassandra are:
* Peer to peer networking
* Distributed computing
* Databases and data storage
Additionally, the name Cassandra refers to the Trojan princess in Greek mythology who was a prophet, or "oracle" if you will, so potential logos could also make use of this reference.
* Usable on a light background is preferable.
* Use of limited palette (i.e. for printing, etc) preferred.