A great way to engage with busy people, the interactive visual displays collect votes on issues we should all care about! An initiative by Australia's oldest Univeristy, the University of Sydney, the ​interactive billboards have contributed to data collected around the world. Visit the What Matters website for the key findings of the study and world map.

Click here for more information about the interactive campaign. ​And here to see how advertisers use the same technology for adidas, coopers beer and virtual marketplaces.

Image courtesy of University of Sydney. ​