[SudarshanP]

Thanks for that clarification. I too was under the wrong idea that B2B were somehow guys involved in connecting businesses to each other though their solutions. So B2B and enterprise software are the same? Does 37signals/Tello count as B2B or B2C?

[hkmurakami]

Enterprise Software is a subset of "B2B". B2B encompasses any business that sells products and services to other businesses. The universe spans Alcoa (the world's largest aluminum producer) to Oracle (perhaps the world's most evil software producer).