Just came over plot.ly the other day and it looks like a very good tool. I haven’t had the chance to try a demo yet, but I definitely will when I get a chance. Probably especially useful when people are using different languages and methods to do their analysis. Worth to check out I would say.
What they say on their web page is:
Visualize Your Data, Together
Plotly is a complete suite of data visualization and collaboration tools for engineers and data scientists.