Using the data input for the OpenDoor theme, the goal was to generate a separate feed for three separate Real Estate Listing Services:
All three had very exacting specifications for the values for the feed to have.
Lands of america actually required that the xml data be sent via a post call on a regular basis, which I used a WordPress Scheduled Event for.
LandFlip actually requires a tab-delimited text file, which the service accesses daily.
LandWatch requires an XML feed, which is accessed daily.