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As a part of Project Ockham, I have started integrating Find More Like This One functionality into one of my bibliographic indexes. See: http://tinyurl.com/c5htp The link above will search an index of about 250,000 OAI records for the term "hemogloban". It should find zero hits because the word is spelled incorrectly, but the interface will suggest a number of alternative spellings. Once these spellings are used, the system will respond with synonyms as well as a suggested abbreviation, Hb. The system is not perfect; right now it only really works with singe-word queries. I am using using Net::OAI::Harvester to collect the OAI data. MyLibrary is used to manage the harvested content and create reports. I use swish-e to index/search the data. Spelling corrections employ Aspell, and the synonyms are generated through the use of WordNet. Fun! -- Eric Lease Morgan University Libraries of Notre Dame