Most commercial database management systems offer basic phonetic full text search functionality. For example, Oracle has a module called Oracle Text. Yet, seeking to add more functionality and intelligence to their search capabilities, many commercial applications use third party specialized full text search engines instead. There are several commercial products on the market. But certainly Lucene is the most popular open- source product at the moment. It provides searching capabilities for the Eclipse IDE , the Encyclopedia Britannica CD-ROM/DVD, FedEx, New Scientist magazine, Epiphany, MIT’s Open Courseware and so on.