Interesting reference from Steve Halls on a new meta-data based people finder, a "content-focus social-software service" which seems to browse and aggregate web content about people, and store current and past corporate information. I had a look at my profile which is out of date, but still pretty accurate.
Eliyon gathers the information from the Web in a very different way than today’s search engines. Using patented technology, our computers can extract business-specific information from millions of web sources. Our technology then automatically compiles this vast amount of information into profiles of business people. We continuously read small and large company Web sites, company filings with the government, news sites, press releases, and millions of other public Web pages.
I have recently seen several projects like this one who aggregates web information using a specific ontology (people, company, history etc....) in order to create useful business content. I look at this as the Content-based Linkedin whereas Linked-In is more People-based, and the two complements each other nicely.