OAI Tools
Open Archives' list of tools implemented by members of the Open Archives Initiative community
http://www.openarchives.org/pmh/tools/tools.php
Digital Library Federation's handout provides an overview of OAI-implementation tools, grouped according to their role in the OAI-implementation process. (November 2005)
http://www.diglib.org/architectures/oai/imls2004/training/OAIToolsFinal.pdf