Geosetter - GeoSetter is a freeware tool for Windows (requires Internet Explorer 10 or higher) for showing and changing geo data and
Metadata++ - Homepage of Metadata++, free, intuitive and powerful EXIF, IPTC, XMP, ICC, GPS viewer/editor.
Geotag - GeoTag is a freeware tool for Mac for showing and changing geo data of image files (e.g.
Exif Pilot - Exif Pilot is a Free EXIF Editor that allows you to manipulate META data within image files.
Houdahgeo - With HoudahGeo you may "pin" photos to locations where they were taken.
PhotoME - PhotoME is a powerful tool to show and edit the meta data of image files.