David Filo

David Filo (born April 20, 1966) is an American businessman and the co-founder of Yahoo! with Jerry Yang. His Filo Server Program, written in the C programming language, was the server-side software used to dynamically serve variable web pages, called Filo Server Pages, on visits to early versions of the Yahoo! web site.

Personal life and education
Filo was born in Wisconsin. At age 6, he moved to Moss Bluff, Louisiana, a suburb of Lake Charles, Louisiana. He graduated from Sam Houston High School and then earned a BS in Computer Engineering from Tulane University (through the Dean's Honor Scholarship) and an MS from Stanford University.

In March 2013, Filo was estimated to be worth $1.7 billion, ranking him the 882nd richest person in the world.

Career
In April 1994, he co-created with Jerry Yang an Internet website called 'Jerry and Dave's Guide to the World Wide Web', consisting of a directory of other websites. It was renamed 'Yahoo!' (an exclamation). Yahoo! became very popular, and Filo and Yang realized the business potential and co-founded Yahoo! Inc.

Yahoo! started off as a web portal with a web directory providing an extensive range of products and services for various online activities. It is now one of the leading internet brands and, due to partnerships with telecommunications firms, has one of the most trafficked networks on the internet.