Yesterday was the Interactive Infographics panel at South by Southwest, and if Twitter is any indication of how it went, I'd say the panel had a captivated audience. I wouldn't expect anything less from the four panelists, Ben Fry (Processing), Shan Carter (NYT), Casey Caplowe (Good), and Eric Rodenbeck (Stamen)
Unfortunately, I didn't get to attend, but luckily I was able to follow the play-by-play on Livefyre (sort of a cross between chat and forum) along with some excellent notes from @jpmarcum and @bryanconnor. Here are the important bits I was able to glean.
The bulk of the time was spent showcasing the work from the four groups. I think you can find most of the projects through FlowingData. Just use the search form on the bottom right of this page. The good stuff came towards the end during the Q&A.