Tom Preston-Werner is a cofounder and chief executive officer of
GitHub, a web site that makes it easy for users to collaborate on
software projects and share code. This site has attracted a community
of more than 3.5 million developers and strives to lower the barriers
of collaboration by building powerful features into its products,
making it easier for users to contribute and write better code,
Preston-Werner also invented the Gravatar, a globally recognized image
that follows its user around the internet to help identify posting on
blogs, web forums, or other internet activities. He sold Gravatar in
He lives and works in San Francisco. The weather there is strange, but
he loves it, and the mountain biking is unbelievably good.
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