When brands agree to cross-promote each other. In effect, each brand becomes a separate sales channel for all the others in the group.
When a driver of a high end sedan gets out of the car wearing an expensive watch and a bespoke suit, now that is co-branding. Each of the three brands have agreed to promote each other in RL (Real Life), on television, in print, online, in social media and on the mobile web.
by ProfBruce April 23, 2011