Retrieving information from a database using an index of XML (eXtensible Markup Language) tags and metafiles. The index includes XML tags that correspond to domains and categories. The domains and categories are selected to facilitate searching of the database. An XML tag can have a corresponding metafile...http://www.google.ca/patents/US6510434?utm_source=gb-gplus-sharePatent US6510434 - System and method for retrieving information from a database using an index of XML tags and metafiles
