Dojo Charting:
- tests (warning: this test server set up for debugging)
- my articles on SitePen's blog (disclamer: I am the principle developer of this package).
Stand-alone Dojo charting widgets with links to the same test server:
- analog gauge
- bar gauge (variation of the bullet chart).
EDIT: responding to the latest edit of the question: Dojo Charting does not support flow charts directly. There are several projects that did just that using Dojo GFX, but nobody contributed it back — try to Google for it.
