Our team (Daniel, Kostas and I) have just finished doing 3 entries for the competition – An eye on IRIS, which aims to produce visualization of the data on esteems won by UCL researchers all around the world for which had been provided with a small subset of the IRIS database.
The major aspects of the work was Geo-coding the database using the address/organisation information present in it and Visualizing the database so that it gives both overall and detailed information about the database. We spent a lot of time and energy in the cleaning and organizing the data using Omniscope (credits: Dan) and then used Omniscope, JavaScript, Google Maps API and Processing to visualize it. Below is one of the three visualizations produced by the team which uses JS and Google Maps API. The interactive version of the visualizations can be found at http://balaspa.comuf.com/
This particular visualisation uses heatmapLayer feature from the visualisation library, marker clusterer from markercluster.js, geodesic lines for the flow lines and CSS+ JavaScript to display the info window.