The typical Wikipedia user, who Wales described as "a 26-year-old geeky male," is bound to move on to other things eventually and, after 10 years, there simply aren't as many things for new users to add.

Wikipedia has more than 3 million entries, but by March had only about 90,000 active contributors, according to The Associated Press, which reports that Gardner says the goal is to add another 5,000 by June of next year.