April 21 , 2008 Quattro and MLS Listings Data Share Agreement July 31 , 2007 MetroList Launches California MLSAlliance April 12, 2007 San Francisco MLS, MetroList® and BAREIS MLS® Launch Quattro April 12, 2007 Implementation of Rapattoni SecureLogon Completes Phase One of Quattro Data Share Agreement January 29, 2007 C.R.E.B. Announces Innagural Officers and Board Members December 14, 2006 Real Estate Brokers Form New Mutual Benefit Corporation Called Calfiornia Real Estate Brokers, Inc. (C.R.E.B.) September 22, 2006 Three MLSs Agree To Share Real-Time Property Listing Information