Abstract—Tiny, wireless, sensors embedded in a large number of Internet-capable devices–smart phones, cameras, cars, toys, medical instruments, home appliances and energy meters– can generate an enormous volume of small bits of data such as temperature and humidity readings, GPS co-ordinates and energy usage. The real value of this data lies in its analysis, which can lead to significant insights and actions that enhance the health of our planet and its populations. We have developed a web-based infrastructure called Sensor.Network for storing, sharing, searching, visualizing and analyzing data from heterogeneous devices and facilitating easy interaction amongst devices and end users through an open, REST-based API. This demonstration starts off with a brief walkthrough of or.Network portal as we describe its data abstractions, APIs and different views, e.g. dashboard view for monitoring the health of different sensor datastreams and their access permissions and map view for geo...