Founders at Work proved to be a seminal piece of work for startup founders - a lot of things have happened since it's publication such as the "supposed" demise of Web 2.0, the rise of Twitter and the advent of "augmented reality"/"web squared". If there was a volume 2, what companies do you think should be included? And who among the founder/co-founders/first employees should be covered? And why?
One company and one suggested founder/co-founder/first employee and one explanation per post please.