Abstract: A system is described for creating a score for measurement devices 14, 16, 18 in order to facilitate a search for measurement devices in the internet of things. The system includes a server 12 with an indexing subsystem 30 that can retrieve measurement data from the plurality of measurement devices. The server 12 also determines a second set of data based on user interaction with the plurality of physical devices in the network. A ranking subsystem 38 in the server 12 can then determine a score for each of the plurality of devices based on the first set of data and the second set of data. The score is reflective of the quality of data and the credibility and popularity of the measurement devices among users. A presentation subsystem 36 outputs a geographic map in response to a user's search including a plurality of markers associated with the measurement devices. The opacity of the markers on the map is dependent on the score determined by the ranking subsystem 38.