When you design a web site, it happens that you need to create graphs or technical charts. But this is quite difficult if you don’t spend a life drawing little charts or if you are not satisfied with the charts out of Excel (or OpenOffice Draw). For this, you need to have a good chart/graph package.

I found two of them that I want to share with you:

• amCharts is a set of Flash charts for your websites and Web-based products. AmCharts can extract data from simple CSV or XML files, or they can read dynamic data generated with PHP, .NET, Java, Ruby on Rails, Perl, ColdFusion, and many other programming languages. I like the final appearance even if they could have more of a designer touch.
• Chartle provides simple and interactive charts, maps, plots and diagrams. It’s still in beta right now (beg of 2010) but the results are quite good.