Flickr, Picasa Web, SmugMug, Zenfolio are all the wrong places to publish massive things like this. They have awful limits. I haven't been able to find a gigapixel host that is like Flickr/Picasa Web/SmugMug/Zenfolio but dedicated to massive panoramas.
This brings me to my question and purpose of thread: how can I publish my gigantic panorama? I know there are viewers out there, surely they aren't custom designed for every particular website by the webmasters of that site. Could you recommend me to software and tools for publishing massive panoramas on my own web resources? Advices, tips, and suggestions are appreciated!