This document contains a list of terms and concepts related to location data, mapping, and environmental sensing. Some of the terms mentioned include Twitter, geotagging, GPS, OpenStreetMap, weather stations, temperature and humidity sensors, and Google Maps. Various websites and resources are also listed that provide more information on projects related to location information and sensor networks. Overall, the document appears to be a collection of keywords and topics within the domain of geospatial data and environmental monitoring.