its analysis of used game monolith GameStop, Gamasutra has put together an article examining the company's revenues and how they break down. Unsurprisingly, most of GameStop's revenue comes from the United States, although an increasing share is coming from Europe, which saw a revenue increase of 67% in the last fiscal year. Undoubtedly though, the most amazing (alarming?) bit of news in the piece is that GameStop, according to Gamasutra's estimates, now controls a full 21% of the US game market.
It should be noted that Gamasutra's estimates do not include the sales of accessories or PC games, but still, day-um.