In early 2005, Michael Arrington, a lawyer, and Keith Teare, an entrepreneur, started a fund called Archimedes Ventures. Their idea at the time was to invest in Web 2.0, meaning the nascent world of web apps. They built a few products at the time. One was an online classified ad service called Edge.io that was supposed to mimic Craigslist on every site on the web. The other was a startup tracking service called TechCrunch that aimed to review every Web 2.0 site popping up on the nascent Internet...