As you and so many others have identified, the objectives of aggregate websites such as Truilia and Zillow are not aligned with that of real estate professionals. It is a critical and incredibly important business strategy for these websites to announce "Over 6 gazillion home for sale" and 'Foreclose for everyone" simply to drive up traffic. (Does Trula and Zillow charge you based solely on traffic?)
The more polluted these websites become with bogus data,(this should be ENCOURAGED) the more reason there is to rejoice. There is gold in this reality. However, the basic principles of marketing must be applied for professionals to benefit.
Of those responding to your question as of 9:57 am on Aug 21st, having briefly examined their Q&A, NONE have exhibited an understanding of the environment and deployed the strategy to exploit the situation.
Good leads can generated from Trulia but YOU CAN NOT BUY THEM.
Hmm, that which is given away freely is considered of little value. Knowing this to be true, I'll end my contribution at this point. Those who have interest should realize there is no secret for those who press forward with the desire to know.
Best of success to you,
Annette Lawrence, Broker/Associate
Remax Realtec Group, Palm Harbor, Fl