Version 0.9.2 of Omeka has been released. This is a bug fix release.
Here's an excerpt from the About page that describes Omeka:
Omeka is a web platform for publishing collections and exhibitions online. Designed for cultural institutions, enthusiasts, and educators, Omeka is easy to install and modify and facilitates community-building around collections and exhibits. It is designed with non-IT specialists in mind, allowing users to focus on content rather than programming.