Trulia and the MRIS (our local MLS system) ended their relationship in 2013, so local Realtors have to manually upload listings into the system, if they want them to appear on Trulia.
Unless a site is Realtor based (Realtor.com, local real estate company websites, etc) the llisting information is almost ALWAYS out of date. The two worst ones are Zillow (sometimes 2 years out-of-date) and Redfin (often months out-of-date).
I often have clients call and ask to see homes they have found on one of these sites only to look it up on our MLS and discover that the home had been sold months before.
If you'd like to sign up for the most accurate listings locally, please go to my website at www.kellyputz.com.
Realtor in MD, DC & VA
Barcroft Realty Group