Information, advisory and consultancy services for providing semi-conductor component parts for use in the fields of telecommunications, communications, navigation, surveillance, microelectronics, optoelectronics, acoustic filters, semiconductors, clock generation and timing, power management, power regulation, power isolation, power protection, and audio signal processing technology; transmitting and disseminating information and data providing semi-conductor component parts for use in the fields of telecommunications, communications, navigation, surveillance, microelectronics, optoelectronics, acoustic filters, semiconductors, clock generation and timing, power management, power regulation, power isolation, power protection, and audio signal processing technology via computer networks and the internet