(commerce/e-commerce) Acronym for business-to-business. Commerce in goods, services, or information that takes place between business enterprises. Contrast to the exchange of goods, services, or information between businesses and private individuals (business-to-consumer or B2C). Business-to-business is a term associated with the pre-Internet “old” economy whereas B2B is a term associated with the “new” Internet economy. B2B sales on the Internet are expected to grow at a faster rate than the B2C sector.