Marc Andreessen, the co-founder of Netscape and other technology companies, landed the number one slot on Fortune magazine's 2010 list of the top 40 executives under the age of 40, the magazine announced Thursday.
Other tech leaders include Facebook CEO Mark Zuckerberg at number two, followed by Twitter founders Evan Williams and Biz Stone. Google founders Sergey Brin and Larry Page improved their fifth-place standing of last year, moving up to third.
Rupert Murdoch's son James, chairman and CEO of News Corp. Europe and Asia, is the highest-ranked entertainment executive, at number eight.
