Co-author of Mosaic, the first widely used web browser with a graphical user interface. Co-founder of Netscape and general partner of Silicon Valley venture capital firm Andreessen Horowitz. Co-founder of Ning. Net-worth estimated at $1.7 billion by Forbes.

Essayist, mathematical statistician, former option trader, risk analyst, and aphorist. Work concerns problems of randomness, probability, and uncertainty.

British evolutionary biologist and author. Emeritus fellow of New College, Oxford. Popularized the gene-centred view of evolution in his book "The Selfish Gene" and coined the term "meme".

American economist, columnist, and blogger. Professor at George Mason University, holding the Holbert L. Harris chair in the economics department. Co-host of the economics blog Marginal Revolution and co-founder of Marginal Revolution University.