About model and data exchange with 3rd party solutions: Revit, Solibri, dRofus, Bluebeam, structural analysis solutions, and IFC, BCF and DXF/DWG-based exchange, etc.
The link to the goodies is found on the Help menu within ArchiCAD. Look for 'ArchiCAD 13 Downloads'. This should take you to the localised version of that page.
The link above is for the INT versions of the goodies which may not be compatable with other versions.