Visualizing with Google Fusion Tables
Google Fusion Tables is a web-based system that can “fuse” multiple sets of data and visualize them. You upload spreadsheets or choose data sets, then apply filters and display the result. When you’re done you can email a link to your visualization or embed it into a blog post. If the data are updated, your map or chart will always reflect the latest values.
To try it out, I found a set of data on the NOAA website with average annual snowfall data for hundreds of US cities. I filtered out some of the extreme numbers, and created the visualization below.
My map is pretty but not very useful, and it doesn’t begin to show the cool ways you can use Google Fusion Tables. For a better explanation, read the ProfHacker article Using Google Fusion Tables, and take a look at this YouTube video: