Rob McCool is another of the core group of original Mosaic programmers who went on to found Netscape. Unlike a lot of the others we have spoken to, he worked more on the server side of the equation for both projects. Rob was also the original author of the NCSA HTTPd web server, later known as the Apache HTTP Server, so we can think of him as the Godfather of Apache. He was a contributor to the initial specification of the Common Gateway Interface (CGI), and later what became known as the Netscape Enterprise Server. Rob went on to work at both Yahoo and Onlive. He is currently at Google, where he works on structured Knowledge Bases and semantics.