Seattle based Front Seat software launched a new service to rank public transit for an area. The service almost perfectly illustrates the value of open government data. The "Transit Score" offers a handy location score that's compelling because transportation is a major factor in picking an affordable place to live.
Real estate web service Zillow has progressively made a large amount of information available via its API (our API profile). Recently the Zillow API was updated to include access to additional information, including GetRegionPostings and GetUpdatedPropertyDetails API calls.