Of coarse everyone starts with YouTube. YouTube is clearly the default place to host video but everyone seems to be looking for a little more professional look than you get with YouTube. Many like hosting sites like Vimeo and ExposureRoom and similar hosting sites the majority of these are not appropriate for real estate video because their terms of service prohibit commercial use. Trust me on this, I had my Vimeo account canceled without warning for posting real estate video on Vimeo.
I don't think hosting your own video is a viable solution for the majority of real estate photographers because of the challenging, changing state of web video. You want to be visible on all platforms and the technical approach for doing that is technically challenging and changes almost weekly. In the process of researching this subject I ran across a pretty good description of the challenge you are up against in hosting video in a white paper at brightcove.com. Of course this white paper is a pitch on why you should use brightcove hosting but I find the paper to be one of the best summaries of the challenge for video hosting I've seen.
All of the hosting sites that allow commercial use have a pretty serious monthly charges (from $80/mo to $195/month). For the last several weeks I've been researching video hosting alternatives. I'll be honest, I don't have the answer at this point. Here are a few of the I've found:
There seems to be some evidence that the services that provide support for streaming video provide a better viewing experience for the widest number of viewers because it adaptively adjusts to the viewers bandwidth.
What other commercial video hosting alternatives are people using?