Stickybits is a social network that combines your phone’s camera, a web connection, and UPCs to leave virtual notes and images scattered all around you like invisible sticky notes. The important question, as always, is can it be used to sell stuff? Coca-Cola, Pepsi, Campbell’s, Frito-Lay, and Ben & Jerry are all planning to find out in social media campaigns this summer, reports Brandweek. [More]