Emergence Capital, for example, focuses on business applications and its expertise in building companies focused on that market takes many forms.

FORBES: Matt Holleran: Silicon Valley's Business Freemium Go-To Guy

With the possible exception of agriculture, the energy industry enjoys more outrageous subsidies, market distortions and other forms of disguised aid than any other.

ECONOMIST: Energy policy

Diverse forms of free market, exemplified by Couchsurfing, are part of the future.

FORBES: AirBnB Speaks to More than Just Money