I built a simple charts library for Radio-Canada called Moby, which we used in
an
article about Montréal's mayor, Denis Coderre, who is using
Twitter quite a lot. As usual,
the library is open source and
available on Github. One interesting
aspect of Moby is that it uses plain HTML, no SVG or Canvas, even line charts
and this bubble chart.
The visualization below is interactive! The code is
available here.