As we are thinking more or less specially I always ask myself: where can I be in the next 30 minutes? Most of current webmaps out there are not answering this quite good using isochrones as example. Most of them taking into account the direct distance which have some major implications if you compare the distance of 30min road trip through the countryside compared with the same time in Paris: about 50km against , right? So I would like to show you, how to get a better idea of reachability using three different approaches but all implemented in Leaflet.
As I have seen today on engadget Youtube presents now a new Trend Map where you can see what viewers in the US like to see on Youtube. At the moment it seems to be the True Blood Trailer for Season 6. But the more interesting part is the analysis of metadata of the viewers: you can select different sexes, age groups and cities. Furthermore you can easily see, that older people tend to have a more diversified watching habbit.