The Data Science Toolkit R Library by Ryan Elmore allows developers to integrate the Data Science Toolkit API's functions into their R applications. This library is offered under the Simplified BSD License.
For months, the Bing Maps site has been showing off what are essentially embedded mashups. You can search nearby tweets, FourSquare check-ins and other content from partners. Until now, it was merely a showcase of apps either written internally or by a company that Microsoft had blessed. Now, you have the opportunity to get your mashup included on Bing's map.
Geo APIs are popular in today's mobile, ever-connected world. It's hard to find an oft-used app without mapping functionality of some sort. While the likes of Google Maps and other services have popular APIs, there is a visible lack of standardization in geocoding that the OGC seeks to remedy.
If you're looking for a traffic data web service, you probably have not been able to find one for free. Now mapping pioneer MapQuest is beta testing a service it says provides "real time traffic information related to incidents, markets and flow."