Realbird is a great tool for all realtors. It's a listing publisher that blasts your listings out to syndicated websites such as Google Base, Trulia and Zillow, but offers much more!
With Realbird, your listings will automatically show up on a map, which gives prospective clients the option to find you by searching through their town and/or state.
It also gives you the HTML coding for Facebook, Craigslist, Backpage, del.icio.us, and more - so you can get your listings out in the market!
You can sign up for free, but are allowed only 3 listings with the free account. After you have used those 3 free listings, you must upgrade to a paid account.
Paid subscriptions to Realbird are $99.99 per year.