Welcome to WebmasterWorld Guest from 220.127.116.11
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First, welcome to WebmasterWorld!
Teoma was a university project at rutgers university - askjeeves bought them last year, after they became a commercial project backed with some venture funding.
It is a 'theme based search engine' for what it's worth, and the guy who created this site, Brett Tabke, did quite an interview with the founder of the technology behind Teoma.
I would recommend duing a site search [searchengineworld.com] for more information, or digging into the form I mentioned above - where I will have moved it. :)
Hope that helps!