New York—The Interactive Advertising Bureau announced the addition of 12 new members—10 general members and two associate members. General membership is open to companies that sell any form of interactive advertising, and associate membership is open to companies whose business supports online advertising. New general members are: Brightcove, Cox Newspapers, Fifth Network, Fidelity Assets, Future US, Harpo Inc., Homestore, IGA Partners Worldwide, Realtor.com and ROO. New associate members are Impact Engine and Linkstorm. The IAB is made up of more than 225 companies that actively engage in and support the sale of interactive advertising.