Thanks to Dylan Darling in Bend, OR for pointing out a relatively new technology called interactive images that I'm sure will be very useful to real estate agents and real estate photographers.
The idea of ThingLink is that you can add links to images that display information related to the image without leaving the image. The example to the right is Dylan's ThingLink image of one of his listings near La Pine, OR. I've simply embedded his image in my post using the public embed code on the upper left-hand side of this image. Notice that as you mouse over this image a bunch of little icons that when hovered over show things like a google map of where this listing is, a slide show of Dylan's listing images, a link to Dylan's website, a link to Dylan's FB page, and a link to a post about this listing on Dylan's blog and a link to the Mt Bachelor website. I believe you can also put YouTube video on interactive images and view a small version of the video without leaving the image.
This interactive image can be embedded in a website or blog (as I've done), an email or any other context where embed HTML is allowed. By simply clicking on the Share icon in the upper left side of the image you can add this image to a Tweet, FB post, email or Tumblr post or just sharing a link to the interactive image.