I'm the founder and CEO of Anybots Inc., a Silicon Valley startup developing next-generation teleoperated robots for use in dangerous industrial jobs. Recently we announced what we believe is the world's first humanoid robot that walks and balances in a truly dynamic way. See more at Anybots.

I'm also a partner in Y Combinator, a new kind of venture firm specializing in early stage startups. We were recently named the 42nd most important person on the web by PC World magazine.

Previously (1995-2001) I was a principal at Viaweb, which made easy end-user e-commerce software. We were acquired by Yahoo, and our product became Yahoo Store.

As a grad student at Harvard (1993-1998) I worked on randomized network protocols, randomized compiler optimizations, and other random things. I published in the proceedings of ACM SIGCOMM, IEEE Infocom, and Usenix. Download the papers.

I've also done a number of recreational hacking projects and published the results on the web, such as the balancing scooter, improved keyboard, and ultra-realistic Apple ][ mode for xscreensaver.