Ginger, I've found that Zillow is so anti-Realtor that any question asked by a potential buyer or seller, is jumped upon with such vehemence with statements like "don't buy, bad time to buy, prices are still falling", and that any Realtor who jumps into the fray to try to answer a question is chastised soundly, because of course, we are "only trying to protect our commission"... it's the wild-wild-west over there, and very little real estate knowledge is passing hands.
Trulia, on the other hand, is so pro-Realtor, that anyone with a FSBO or non-realtor slant is jumped upon with the same vigor. The language is more polite, but the sentiment is the same. Over here there is quite a bit of real estate knowledge being imparted (bravo Trulia), but the overwhelming message is not just "You need a Realtor", but in many cases "Use ME!, call ME, here's my website!".
I have more hope that Trulia will find that middle-ground, than Zillow. I have all but given up on the sheriff arriving at Zillow in time to find any of the residents still alive.