What do you call a lawyer who helps people share, cooperate, barter, foster local economies, and build sustainable communities? That sounds like the beginning of a lawyer joke, but actually, it's the beginning of new field of law practice. The evolving nature of our transactions has created the need for a new area of law practice. We are entering an age of innovative transactions, collaborative transactions, crowd transactions, micro-transactions, sharing transactions- transactions that the legal field has yet to cover. Attorney and author Janelle Orsi describes the emerging field of "sharing law" that reflects the emerging social systems based on sharing.