Dubb is the simplest way to discover and connect with your network. Dubb works by aggregating your friend's contact lists into one up-to-date and relevant master list. We use the power of the crowd to help you discover and access contacts while keeping current ones up to date and relevant. We do this by aggregating your friend's address books into one master list. Essentially if I have contact A and B, and John has contact C and D, when we become friends on Dubb my master list would be A,B,C, and D. Expand your possibilities!