From CUNY Academic Commons
This page provides some basic information about using Omeka. It does not in any way try to compete with the documentation found on Omeka’s wiki, screencasts, and group forums. Definitely go there for technical help, and contribute to the Omeka community by asking questions, sharing insights, lessons learned, and best practices.
Omeka’s Technology in a Nutshell
Omeka is a LAMP Application. It runs on Linux (operating system), Apache (web server), MySQL (database) and PHP (scripting language). On a simplistic level, the application can be broken down into three parts, it “core”, its plug-ins, and its themes.
This is the heart of what makes Omeka work. As with all open source software, it is freely available to look at and modify. But in general, unless you have a really good reason, it is probably advisable to leave the core untouched. If you do modify this code, make a note of what you did, so that when you upgrade to a newer version, you can make you changes there too, if necessary.
Plug-ins enhance Omeka with new functionality. They are purposefully left separate from Omeka’s core code. Developers from the Omeka’s community create plug-ins
Can Omeka play nice with WordPress?