Instagram users fear their photos could turn into ads

In this Monday, April 9, 2012, file photo, Instagram is demonstrated on an iPhone in New York. Instagram, the popular photo-sharing service that Facebook bought this year, is the target of a storm of outrage on Twitter and other sites after the company announced Monday, Dec. 17, 2012 a change in its user agreement that hinted that it might use shared photos in ads. Photo by THE ASSOCIATED PRESS