The Multiple Listing Service (MLS) is the root of the real estate industry. On the East bay MLS, only licensed real estate agents or brokers list the property for sale. This could include certain for-sale-by-owner properties if the seller is working with a cheap real estate agent and paying a flat price for the service. An East Bay MLS listing contains all-important information about a property, as well as photographs and videos. Almost all homes for sale through real estate agents are posted on the Multiple Listing Service (MLS) unless the owner expressly requests that the house not be listed for privacy reasons. Only the realtor is aware that the home is for sale in these instances.