File:Troy Polamalu 2008.jpg - Wikipedia
Justin Hartwig, Pittsburgh Steelers Wiki
Troy Polamalu Hoped To 'Never Go Back' To Pittsburgh After Pre-Draft Visit; Now 'I'm Blessed To Be In The Hall Of Honor' - Steelers Depot
Victorian's 2012 baptism by fire may pay off with secondary depth in 2013 - Behind the Steel Curtain
News Denny Karchner Western Art
Troy Polamalu retires: Steelers safety retires after 12 seasons - Sports Illustrated
Troy Polamalu - Wikipedia
Clay Matthews News, Photos, Quotes, Video
PDF) Wikipedia and the Wisdom of Crowds: A Student Project