I joined www.realbird.com this week and I am having a great time uploading, publicizing and tracking my listings. The interface is easy to use, the site promotes and links to other useful tools and the sellers LOVE the way the exposure is bumped up. It is super easy to add listings to all my social pages and I can create widgets, track who has visited the page, promote open houses, create flyers and more with ease.
I know there are a lot of companies trying to capture this market, but I am a fan of real bird!