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Geocoding involves converting a description of a physical address into coordinates that represent that location on a map to perform spatial analysis. This tutorial on the Google Maps APIs blog describes the two approaches to geocoding with Google Maps APIs, and when to use them.
Sentiment analysis is an important community engagement metric, and with APIs like the WebKnox Text Processing API, it is an analytical technique now open to any business. This tutorial examines how to use the WebKnox Text Processing API to conduct a sentiment analysis and to create a visualization that summarizes audience reactions.
Given the increasing popularity of mobile devices such as the iPhone and Android devices (both of which include full browsers), it should come as no surprise that developers have begun to leverage the various APIs out there to provide mobile mashups that can be implemented without targeting a specific platform or SDK.