Game Charting
For better URLs, name, and that all of the additional PHP/SQL interlinking didn't fit into this already-created wiki format, the present and future of this stuff is at [1]. Since a few things have yet to be moved over and it's more trouble to get rid of things than to leave them sit, though, what was below remains below.
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Latest Weekly Data
Game Charting: Weekly Media Create
Collected Comparisons
Game Charting: Collected Comparisons
Tools
Game Charting: Japanese Hardware Sales Pie and Bar Graph Generator
Game Charting: Japanese Hardware Sales Line Graph Generator
Game Charting: Japanese Hardware Sales "In terms of" Generator
Game Charting: Japanese Software Sales Line Graph Generator
Game Charting: Hardware Shipment Line Graph Generator
Wiki-external Tools
SQL Direct Try your hand at getting the data you want.
Other
Game Charting: Methodology Explanations