Berners-Lee, Tim - Tim Berners-Lee is the founder of the World Wide Web and the man we all owe a debt of gratitude to. Mr. Berners-Lee developed his concepts for the Web while working at CERN research facility in the late 1980's, which had thousands of transient scientists working on many projects over a large space. His concept was to link everyone's research and content through the use of standard communication protocols.
Mr. Berners-Lee invented the Hypertext Markup Language (HTML), or rather, derived it from SGML. He also wrote the specification for the uniform resource identifier (URI), which is ostensibly the address of any content node anywhere. He also invented an early line-mode Web browser on a NeXT computer workstation, mainly to demonstrate his concepts to whomever would give him audience.
However, Mr. Berners-Lee greatest legacy is his breakthrough conception that he could link all human knowledge in digital form by leveraging Ted Nelson's notion of HyperText linking of content nodes across the entirety of the Internet framework, which was already in existence at the time.
It was left to other more commercial-minded people like Marc Andreeson to create commercial-grade Web browsers that would exploit the power of the Web. Had Mr. Berners-Lee patented or licensed his inventions, he could very well have been the wealthiest man our civilization has ever known, but it is a testament to his greatness that he has -- to this date -- never directly profited commercially from the multi-trillion dollar platform that is the World Wide Web.
It is likely that hundreds of years from now, Mr. Berners-Lee will be remembered as the Johannes Gutenberg of digital publishing.