The document introduces Microsoft's Keyword Services Platform (KSP), which provides a set of web services for keyword research and analysis. KSP includes interfaces and APIs for term extraction, suggestion, forecasting, classification and other services. It allows researchers to develop keyword algorithms and providers, and makes them available to developers and applications through a common platform and standard interfaces. KSP provides benefits like server-side computing, combining outputs of different algorithms, and enabling AB testing of different providers for the same task.