This pipe creates the rich feed used in this desktop mashup with Proto: http://www.protosw.com/mods/app/view/379 See how it was built with a pipes-like visual building environment at protosw.com see the video http://www.youtube.com/watch?v=-UvVtpmh4EQ

This pipe gets a Longitude and a Latitude and return the city which that point falls in and then show the location on the Yahoo maps. This pipe uses geonames findNearbyPlaceName API (http://www.geonames.org/export/web-services.html#findNearbyPlaceName).

finds garage sales in The Twin Cities Metro Area by city name

This pipe gets a square region by its north, south, east and west boundaries and returns the list of city names and placemarks which falls inside that region. Somehow like reverse geocoding. This pipe uses this api (http://www.geonames.org/export/JSON-webservices.html#citiesJSON) from geonames.org

If you pass in a longitude and a latitude, you can get elevation data. Data is fed from a web service located at: http://gisdata.usgs.gov/xmlwebservices2/elevation_service.asmx?op=getElevation