Neat Chart Javascript library - HighCharts (stock version - beta)

[nrd525]

I'm using this on my website.  They just came out with a stock price version which looks very cool:

http://highcharts.com/products/highstock

Could be useful for exchange sites and options.

[dserrano5]

Huh, still not released and will cost money.

Protovis is real and open source.

[nrd525]

It is free for noncommercial use at least.  And you can download a beta.

Highcharts has a version designed specifically for stocks or exchange rates. 
Does Protovis do that?

(I might check out Protovis - it also looks very cool).

[nimnul]

http://amcharts.com is one more option. It has special stock charts and it's flash (if you hate emulating canvas for IE).

It's commercial, but it has a free version at the price of displaying logo. It is used by http://btcex.com at least.