B2B can mean: Business-to-business, as in intra-organisational communication, collaboration, and commerce - normally electronic, normally using websites and/or web services Back-to-back, as HVDC back-to-back stations, used for high-voltage direct current systems where the complete conversion process (AC into DC and vice versa) takes place at the same facility. Back-to-back, as in when two or more DJs take turns to play records. Back to basics, meaning a move to less complicated and more prop… (More on B2b)