Quite useful features and free of charge!
Who has removed it the first time? The best free chart framework available.
+consistent API +thoroughly documented +download as pdf +CC licensing for non comm use +tutorials, demos
Raphaël currently supports Firefox 3.0+, Safari 3.0+, Chrome 5.0+, Opera 9.5+ and Internet Explorer 6.0+.
Library quite met my expectations- easy to set up and use, reliable and fast!