Google has offered the capacity to search real estate listings for a long time. For example, when entering queries such as “homes for sale in San Francisco,” a “one box” result used to show pull-down menus for “location” and “listing type.” Activating these boxes would then lead into a specialized “Google Base” screen that allowed for further refinement. I found those screens as recently as earlier this week but today couldn’t duplicate them. However, earlier this week Google explosed a “real estate” filter, among others, on Maps.

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