In the late 1990s, a large multi-national technology corporation, hoping to become a major force in online advertising, bought a small start-up in a sector that was believed to be the "next big thing". That corporation was Microsoft and the start-up was Hotmail. Hotmail and Microsoft established web-based email as a must-have application for personal use. The addition of Hotmail to the Microsoft inventory promised to increase the companies online revenues that were being dominated by Yahoo!, Google and AOL amongst a host of others. Read more – ‘Online Social Networks: Everywhere, Yet Nowhere’.