Tim Berners-Lee wrote the initial proposal for the World Wide Web in 1989, and developed it online in 1991 by using a hypertext model (Berners-Lee, 1989, 1996). The World Wide Web was developed to allow people to collaborate on projects; it began at CERN, the European Particle Physics Laboratory in Geneva, Switzerland, and expanded across nations and disciplines. Berners-Lee (1996) defined the components of the Web: the boundless information world, the address system (URI), a network protocol (HTTP), a markup language (HTML), a body of data, and the client-server architecture of the Web. The creation in 1993 of Mosaic, a graphic Web interface that was the precursor of Netscape, enabled millions of people to easily access the Web. Since then, the increase in Web resources has been phenomenal, and Web search engines are the essential tools for navigating those Web resources.