I have provided a general summary of the differences between the StreetMap (SMP) locators that come with the ArcGIS Desktop media and the World Geocoding Service/ArcGIS Online (WGS) below:VENDORSMP - TomTomWGS - Here (formerly NAVTEQ), with a few exceptions mostly in AsiaVINTAGE OF REFERENCE DATASMP - 2009WGS - 2012GEOGRAPHIC COVERAGESMP - Canada and USAWGS - 100+ countriesLOCATOR DETAIL PROVIDEDSMP - StreetAddress and Postal onlyWGS - PointAddress down to Administrative Place (varies by country based on the quality of the vendor reference data)COST/USAGESMP - Free with ArcGIS Desktop/unlimited geocodingWGS - Free for single geocodes/geosearch or by subscription for batch geocoding - 40 credits per 1,000 geocodes (price of credits vary by country of residence)For more information about the WGS, use this link:http://resources.arcgis.com/en/help/arcgis-rest-api/#/Service_coverage/02r300000018000000/Pat PetersStreetMap Premium product engineerppeters@esri.com