"SearchMonkey is the first product from a mainstream search engine provider that takes advantage of Semantic Web technologies to enable you to produce more relevant search results and thus drive more traffic to your Web site. With common Web development technologies such as PHP, XSLT, and XPath, provide a better experience for searchers as you use structured data encoded in Web pages using Semantic Web standards such as Microformats, eRDF, and RDFa." free registration required--ed.
