Critical mass refers to the juncture at which the diffusion rate of a product or service jumps all at once. Usually, when a product or service is introduced to the market, it is accepted by a segment of the consumer population called innovators and gradually spreads to the conservative consumer population via a segment called early adopters.

Inside sales is a term used to describe sales activities conducted in a non-personal manner using calls and e-mails. Among call-based sales techniques, inside sales is unique in that it is a sales activity that focuses on relationship building compared to other call-based sales techniques.

Lead nurturing refers to "nurturing prospective customers (leads) into customers.

FAB analysis is a framework used in presentation, sales, and product design, and is an acronym for Feature, Advantage, and Benefit.