What do Wikipedia's readers care about? Is Britney Spears more popular than Brittany? Is Asia Carrera more popular than Asia? How many people looked at the article on Santa Claus in December? How many looked at the article on Ron Paul? What can you find?
M. Smucker, J. Allan, and B. Carterette. Proceedings of the 16th ACM Conference on Information and Knowledge Management, page 623-632. Lisboa, Portugal, (November 2007)