Since the earthquake and tsunami hit Japan, technology has certainly played a role in communicating the disaster across the world. Before and after imagery has made the devastation very clear. The three maps mashups below help describe different angles of the same disaster: from the seismic activity, to the radiation levels, to the services available to people in need of help.
LocationGenome is inspired by Pandora’s effort to map out the music genome, which seeks to identify, categorize, tag, and recommend music. LocationGenome would like to do the same thing for places that you might want to visit. The example offered on its site explains the obvious relation to some between organic food groceries, vitamin stores, and vegetarian restaurants. The LocationGenome API aims to help your application take advantage of this type of cross category theme.
There's a new way to get thousands of local points of interest into your web maps: the CloudMade Data Market Place. There's a fee for using the data, but otherwise it's as easy as the standard CloudMade API (our CloudMade API profile). For a few hundred dollars per year, you can add any restaurant in the U.S., hospitals in the UK to your map, or one of about 80 datasets.