Will The Combination Of Zillow and Trulia Put Pressure On Commissions?

Below is a video from Bloomberg with guest Barbara Corcoran. Listen to the hosts and their questions. 

"anyone that's but an apartment or a house come to resent painting 5 or 6% commission"

"so why don't we see more real estate agents offering lower commissions?"

"the broker offers you less value, there is less of a value proposition" 

Some intereting questions. If these hosts have these questions I have to assume other consumers to as well.  

As far as the responses from Barbara... well let's just say we would them interesting.