Neat and possibly useful chart API from Google, released today: http://code.google.com/apis/chart/
If it's of any use, I've written a quick PHP encoding script for it, instead of the JavaScript version they offer: http://james.cridland.net/blog/2007/12/06/google-charts-api-using-php/ I've released it under the "do whatever you like with my crappy code" licence, which I hope is acceptable to those herein. ;) -- http://james.cridland.net | http://www.mediauk.com