Geosetter - GeoSetter is a freeware tool for Windows (requires Internet Explorer 10 or higher) for showing and changing geo data and
Timehop - Your digital life history
Geotag - GeoTag is a freeware tool for Mac for showing and changing geo data of image files (e.g.
My Year Photo Book - All your year’s Facebook & Instagram moments, in a book!
Houdahgeo - With HoudahGeo you may "pin" photos to locations where they were taken.
The Twayback Machine - View your friends' old tweets for fun and trolling