All the information and pictures about your home are stored in MLS. When your home becomes Active in MLS it is listed and available for showing by other Real Estate Agents helping buyers find homes. This is where buyer Agents find information on commissions, features, showing requirements, and terms and price. Some of the data gathered is not available to the general public. The MLS is where the 3% Buyer's Broker Commission is advertised as an incentive for cooperation from other Agents and Brokers and where historical sales history for past home sales is housed.