Harry Potter a cause-and-effect relationship, there is a clear correlation, and it seems that Harry Potter's cultural impact may be stronger than just a fandom bond. Many fan fiction and fan art works about "Harry Potter" have been made. In March 2007, "Harry Potter" was the most commonly searched fan fiction subject on the internet. At the University of Michigan in 2009, StarKid Productions performed an original musical parodying the "Harry Potter" series called "A Very Potter Musical". The musical was awarded "Entertainment Weekly"'s 10 Best Viral Videos of 2009. The sport Quidditch, played by characters in the "Harry Potter" series, was
Harry Potter and the Chamber of Secrets (video game) August 2006, it was the 18th highest-selling game launched for the Game Boy Advance, Nintendo DS or PlayStation Portable in that country. By July 2006, the PlayStation 2 version of "Chamber of Secrets" had sold 700,000 copies and earned $28 million in the United States. "Next Generation" ranked it as the 89th highest-selling game launched for the PlayStation 2, Xbox or GameCube between January 2000 and July 2006 in that country. Combined console sales of the "Harry Potter" line reached 3 million units in the United States by July 2006. The PlayStation 2 version also received a "Platinum" sales award