You can export a 3D DWF directly from Revit. The file can be opened with DWG TrueView which is free to download from Autodesk and is preinstalled on many new computers.
The advantages of the 3D DWF are that people can rotate and look around the entire model. It looks similar to the Shading with Edges Inside of Revit. The files sizes are much smaller than the Revit file which makes them easier to send out. You can also sun sections in the dwf to look inside the model.
1. Export > DWF
2. Select a 3D view in the model
3. Hit Export
This could be helpful to show clients, contractors, or consultants. It could even be useful to just have one that gets updated periodically in a standard location so that project managers/partners can open it whenever they want to take a look at the model.
DWG TrueView can be downloaded here: