Interestingly, Flickr (Butterfields' other startup) was one of the companies that helped define the Web 2.0 era. It too, was (at least partially) successful by

Interestingly, Flickr (Butterfields' other startup) was one of the companies that helped define the Web 2.0 era. It too, was (at least partially) successful by being in the right place at the right time. That's not meant to be a knock on Butterfield... quite the contrary.