LinkedIn is a social networking website that uses 'Web 2.0' principles and technologies to enable professionals to keep in touch with their business contacts.
Founded in December 2002 and launched in May 2003 it is one of the oldest professional networking sites, and its core service has remained free of charge. As of January 2008, it had more than 18 million registered users across the spectrum of industries, with five million of them being in Europe.
Commenting on the technology behind LinkedIn, Satnam Brar, managing director of specialist ERP recruiter Maximus IT, says,