I intend to create several panoramas during my next holiday, so I'm investigating the possibilities for presenting them on my website. Several pieces of software are under investigation, and so far Zoomify is the only one which is relatively simple to operate.
AutopanoGiga is probably the buggiest software I've used (it crashed almost every other panorama), but creates the best panoramas in my opinion. Better than PTGui, but that one is 100% stable. Somehow you can't have everything :-)
The other pieces of software for creating interactive flash/QuickTime movies from panoramas are:
Results (read: experiments) can be found on my Panoramas page in the Photography section of this website.
Note that the Zoomify versions are stored on a sub-domain outside of the SquareSpace domain. Since the sub-domain hasn't the best of up-time, you might be looking at a relatively blank page. The reason for this is a silly limit on uploading ZIP files to the SquareSpace backend. These ZIP files may contain up to 100 files. The entire Zoomify environment contains over 6500 files, and I don't feel like uploading these by hand....
If all goes well, the Pano2VR panoramas will be stored on the SquareSpace backend, and therefore be better accessible.