Marc Lowell Andreesen is an American entrepreneur, venture capitalist, software engineer, and multi-millionaire best known as co-author of Mosaic, the first widely-used web browser, and co-founder of Netscape Communications Corporation. He founded and later sold the software company Opsware to Hewlett-Packard. He is also a co-founder of Ning, a company that provides a platform for social-networking websites. He sits on the board of directors of Facebook, eBay, and HP, among others. Andreessen is a frequent keynote speaker and guest at Silicon Valley conferences. He is one of only six inductees in the World Wide Web Hall of Fame announced at the first international conference on the World Wide Web in 1994. Andreessen was born in Cedar Falls, Iowa, and raised in New Lisbon, Wisconsin, the son of Patricia and Lowell Andreessen, who worked for a seed company. He received his bachelor's degree in computer science from the University of Illinois at Urbana-Champaign. As an undergraduate, he interned one summer at IBM in Austin, Texas, United States. He also worked at the university's National Center for Supercomputing Applications (NCSA), where he became familiar with Tim Berners-Lee's open standards for the World Wide Web. Andreessen and a full-time salaried co-worker Eric Bina worked on creating a user-friendly browser with integrated graphics that would work on a wide range of computers. The resulting code was the Mosaic web browser.