Every presence has needs. A need could be consumer electronics, loans, autos, or knowledge, etc. The presence uses search engines to become knowledgeable about the need. The current search engines are not intelligent. The idea of the invention is to provide more accurate results and semantically linked...http://www.google.es/patents/US7792811?utm_source=gb-gplus-sharePatente US7792811 - Intelligent search with guiding info