When someone wants to create a stir, make a buck, or earn a doctorate, they give the old wine a new name. Now is no different. Infographics are graphic organizers, sometimes called data visualizations, formerly referred to as charts and graphs.
There are some good examples here, but many of these are very weak in correlating data in a way that makes it more accessable.
Always be careful when you use free websites. Read the fine print of who owns your work, once you've used the web application. Unless they have changed their rules, Many Eyes (owned by IBM) owns your data visualization, so I don't use it.
No matter what, data visualization, oooooops infographics are here to stay. Using the best ones can help us understand concepts better than ever.
10 Awesome Free Tools To Make Infographics
Wordle lets you create word visualisations using text you enter. There are plenty of interesting designs to choose from. Enter whole books, short passages or see what other people have used. In this example, we can see the US constitution visualised.
GapMinder is a free Adobe Air (cross-platform by nature) application to ensure you have current data on major world issues and can create visualisations for your purposes. Data is updated yearly and released with new versions of the application. The visuals are also quite impressive!
Inkscape is a free vector graphic software available for many platforms. This is the ideal free option for the creation of your overall infographic. Simple and intuitive, you should have no problems importing your visualisations and combining them with other visuals to create your masterpiece.