From CUNY Academic Commons
Omeka is an open-source software platform developed by the Center for History and New Media at George Mason University. As a “web-based publishing platform for scholars, librarians, archivists, museum professionals, educators, and cultural enthusiasts” (Omeka About Page, 2009, para. 1), Omeka resembles WordPress, with its plugins and themes, but is a very different platform.
Omeka is OAI-PMH compliant, and is based on Dublin Core. It can ingest metadata in both CSV format and in XML. Point it at a open access repository and it can suck in collections whose XML is exposed for harvesting. Examples I’ve tried include a couple from the American Memories Collection (Library of Congress). These are digital collections, and Omeka ingests all the metadata, and the Dublin Core “identifier” field is generally a link to the image itself. Pretty cool…
For a good example of Omeka in action, check out Lincoln at 200
Serious Web Publishing
Amanda French has posted an excellent “Introduction to Omeka” workshop lesson plan that can also serve as a tutorial.