AutoCAD 2015:
download.autodesk.com/SWDLDDLM/Updates/BIM360Addin/2015/4.33.6482/B3AddinAcad64.msi
Revit 2015:
download.autodesk.com/SWDLDDLM/Updates/BIM360Addin/2015/4.33.6482/B3AddinRvt.msi
Navisworks Manage 2015:
download.autodesk.com/SWDLDDLM/Updates/BIM360Addin/2015/4.33.6482/B3AddinNWMan.msi
You can also go to the main Glue addin page:
https://b4.autodesk.com/addins/addins.html