Yes Klauss, I do that myself also. But tell me some classifieds for turistic accomodation or real estate that offer you to integrate a html code in their paid ads. I never find one. All them will tell you that for security reasons they not allow external flash and JS content on their sites.
On the other side, most of them offer to embed youtube video in ads.
Next time before you tell something is nonsense, think twice, please. If you want to proof I am wrong, write here at least one well known classified that offers advertising of real estate or tourist accomodation and where anybody registered as advertiser can add a virtual tour. I am sure you will not find it.
I have a lot of people who would like to pay for avirtual tour but they know it is uneusefull to create a web site for that because nobody will find it on the web. To realise bookings they need to advertise on classifieds and by agencies. And there are no classifeds that accept code for embed a virtual tour saved on another server. If you tell me for one, I will be very happy to offer advertising on that site to all people interesed for virtual tours.
The only thing I can do is offer tours on a separate page like this and to add the link in the paid ad. www.8realestate.eu/villa-leonarda
Agencies have their own system of advertising and are not interesed in virtual tours. I tryed also with novasol, a wll known tourist agency. They are happy with middle quality pictures. http://www.novasol.co.uk/
It seams I will be the first to offer virtual tours integration in the ads. Look my site but don't comment the design, please. I nead to pay professionalists for redesign in autumn www.8realestate.eu
The classified I am developing will have more functions including booking off course. And a nice design. Everybody will be able to add virtual tours and I will offer a special option. You will be able to take shots and create panoramas, send me the material icluding your logo and I will create a virtual tour from that material, for the price of advertising (example 35-40â‚¬ + VAT/year - for one listing).
I am thinking now about what region to work. It would be maybe intersting to offer all the Europe or world and engage all photographers to colaborate. Example you work in Germany I have a request for a tour, I would ask you if you want to take shots and create panoramas and send you to the address for the price you want. Later you can create your own tour and be paid by the customer or I can create it for free from the material I'll recive.
Or I will work only my region maybe and do all the job myself.