Open-source software running the Internet under the radar

http://www.cnn.com/2004/TECH/intern...source.ap/
index.html

SAN JOSE, California (AP) -- It powers more than 70
percent of all Web servers and routes much of the world's
e-mail traffic. It makes surfing the Internet simple and
provides the muscle behind Google Inc.'s search engine and
countless e-commerce sites.