Free map XML web service?
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I want to create an XML web service that allows a user to enter two U.S. addresses, and be able to obtain step-by-step driving directions. At first I was hoping that Yahoo or Mapquest would have a web-based API that I can use, but I can't find any APIs for them. PLEASE let me know if they (or any other map sites) have these APIs. So my second alternative is to find a free XML web service somewhere out there that can provide more or less the same functionality. That way, I can still create my custion XML web service, and have it call the 3rd party web service to do the job. Microsoft's MapPoint.NET web service (http://www.microsoft.com/mappoint/webservice/default.mspx) would have been the perfect solution for me, but it's not free. I'm doing this for a school project and, as a student, I can't cough up what Microsoft is charging for using its MapPoint.NET service. So, I would like to know if anyone knows of another map web service that is free. Thanks.