Sometimes, you need a chart. You need it fast, you need it to look good, and you need to embed it in a web page. ChartsNinja to the rescue!
The site allows you to create basic bar and pie charts with a high level of customisation. If you need fancier versions, for $US3/month, premium users can access doughnut, line, pyramid and stacked bar graphs. For basic chart usage, it's fast and easy.