Graul says that the Miso project was funded by the Bill & Melissa Gates Foundation in collaboration with Bocoup, an open web technology company.
The Dataset page on the project site shows examples of the visualizations, such as UK Government Cabinet Office spending in the 2010/2011 financial year.
And if this example is along the lines of what you need to do your own visualization project, you can just hop over to its github page and fork the code.
The data is then manipulated slightly to keep track of how many different types of punctuations are used. On the first request, a new derived group by dataset is created that only contains counts for the punctuations available. As new data comes into the original dataset, the group by is automaticaly updated. When the group by is updated it fires off a change event on which we render an updated chart.
"The Guardian is committed to Open Journalism and the Miso libraries are part of a process of building a truly open interactive journalism, where we not only make raw data available to the public but also open up the 'full stack' — from data processing tools and scripts to the visualisation tools used to create the final output," Graul says.
Dataset is released under a dual MIT and GPLv2 license.