Before adding all the interaction you can imagine, think!

Andrew and Louis are two computer engineers from Minneapolis who wanted to know where their tax money went. So they collected the data and put them on That are a lot of data. So now Google and art and technology center Eyebeam have created a dataviz challenge for designers to visualize how individual federal income taxes are spent by the US government.

To inspire potential participants the site offers some links to nice visualizations about the destination of tax money, including an interactive bubble chart and ditto timeline, but also an explanimation and the wonderful (but not very intuitive) tool to create a Better World Flux. Last but not least Jono Brandel from Google Creative Lab created an example visualization in HTML5 that allows American citizens to input their income and see how the government spends their dollars.

Who wants to join the competition has to know that the judges will be looking for “that wow factor, that addictive tool that shows us something we didn’t know, something that illustrates relationships, hidden stories, and simple facts in a way that is uniquely insightful to tax payers.” They will pay attention to storytelling, clarity, relevance, utility and aesthetics. There’s some controversy about the rule that the challenge only is open to “users who are physically located in the United States” but for me the most interesting part of the briefing consists of this “Note on Interactivity”:

We’re excited that the web is making it easier than ever to create interactive data visualizations, and we’re hoping that this challenge will produce some great interactive pieces. That’s why we’ve provided the API. However, before you start adding all the interaction you can imagine, think about what meaning an interaction brings to the piece and how best to convey that meaning.

(via Chart Porn)

Election day: a feast of interactivity

From a European perspective the midterm elections held today in the United States are a feast of democracy. Voters elect new members for the House of Representatives and the Senate and all kinds of local representatives. Furthermore they are able to give their opinion on several ballot measures, initiatives, and propositions.

Election day is also a feast of interactivity. As always The New York Times is leading, with interactive election maps for the House and Senate, a visualization of political tweets and an overview of states where Tea Party candidates are running.

But of course others show their best too. Good visualizes how the political climate has changed over time while Forbes concentrates on billionaires’ favorite politicians. Pressure groups also have discovered the power of infographics. Oil Change International reveals how energy companies attempt to suspend the California Global Warming Act by funding Proposition 23. A nice example of the power of zoom, except for the counterintuitive slider. Less interactive but much funnier is this explanimation that promotes the legalization and taxing of cannabis in that same state:

Bacon and beyond

It’s a classic in network theory. The Oracle of Bacon illustrates the small world phenomenon by showing how each actor or actress within six steps is connected to Kevin Bacon. Now the Notable Names Database does something similar for all people (well, mostly American people) who have ever been noteworthy in one way or the other. The NNDB Mapper visualizes the connections between over 37,000 more or less famous people (via).