[jskopek]

A couple months ago I built a reporting tool for a client using Flot, only to have to switch over to Google Charts after users started complaining.

Flot, and all other Canvas-based JS charting solutions, are really impressive applications of Canvas, but until browsers start supporting Canvas copy/paste better I'm hesitant to use them for graphing apps. Image-rendering graphing solutions support most browsers and can be easily copy/pasted into other applications, with little additional overhead.