What B2D (Business-to-Distributor) is

An acronym that describes online communications and transactions conducted between a business and the members of its distribution channel (such as resellers, distributors, agents, and retailers).

The meaning of B2G (Business-to-Government)

An acronym that describes business-to-government relationships. With the government being the largest employer in the U.S., B2G is expected to become big business.