+ wishlist Building Successful Online Communities: Evidence-Based Social Design [9780262528917] Add to Cart The item has been added Author: Robert E. Kraut Paul Resnick Building Successful Online Communities: Evidence-Based Social Design [9780262528917] Buy More - Save More. Below are the available bulk discount rates for each individual item when you purchase a certain amount Quantity Price Savings 25 - 49 4% 50 - 99 5% 100+ 6% List Price As Low as $35.00 Format: Paperback