I don't think you have discussed virtual tour creation platforms recently. I currently use TourBuzz.net as my VT platform but I'm wondering what other platforms are out there to choose from?
A number of years ago I created a Tours page which you can find by clicking "tours" in the menu bar at the top of the PFRE blog that shows exactly what you are asking about. That page is a list of the major tour creation sites that are recommended in PFRE blog readers. There is a comments section on the page so readers can give input on their experiences with the various tour companies.
You can see from the reader comments that a clear majority of PFRE readers use and prefer TourBuzz.net to create their tours. RealTourVision.com , Fullframe Systems, and VeewMe.com are also popular tour creation platforms with readers.
What do you use as a tour creation platform?