Nice work by Alyssa X:
Flowy makes creating WebApps with flowchart functionality an incredibly simple task. Build automation software, mind mapping tools, or simple programming platforms in minutes by implementing the library into your project.
Git Debugging Flowchart
Time Travel in Movies
(src)
Should I work for free?
(start in the middle)
HTML5 Sectioning Element Flowchart
An easy-to-understand HTML5 sectioning element flowchart to help you get to grips with some of the new elements in HTML5.
Lovely Charts for iPad
Not only looks great, but also looks usable.