http://knol.google.com/k/ Please visit the above site to read authoritative units of knowledge - Knol Some Librarians like Dr Sukhdev Singh may like to author a few Knols. Dr P Vyasamoorthy, Society for Serving seniors 30 Gruhalakshmi Colony Secunderabad 500015 Ph 040-27846631 / 9490804278 http://societyforservingseniors.satyamcsr.og/ -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.