It seems that you can pay to get ih the listing section ( see copy and paste below), or place a free ad complete with photos, video, and links in the blog section. Also, the links below may be of some help to you as well. Good luck.
Trulia Help Center > For Home Buyers and Sellers > Using My Trulia >
Can I list my home on Trulia?
Yes, if you are a homeowner and would like to post your listing on Trulia, you can subscribe to Trulia Pro. Call one of our sales associates at 888-568-6487 to get you set up in minutes."