Harvard has a relationship with the tutorials website, Lynda.com, which gives students free access to all of Lynda.com’s resources through Lynda Campus.
Software Free Trials:
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Adobe Creative Cloud: //helpx.adobe.com/creative-cloud/help/download-install-trial.html
ArcGIS (60 days): //www.arcgis.com/features/free-trial.html
AutoCAD and other AutoDesk: //www.autodesk.com/free-trials
Grasshopper for Rhino: http://www.grasshopper3d.com/
Rhino (90 days): //www.rhino3d.com/download