Cree.py application knows where you've been
Source: cree.py A new Python-based application called Cree.py uses geolocation data from social networks and image hosting services to build a minute by minute time line of a person's movements. The author, Yiannis Kakavas, does not think that creating the geolocation aggregator is disturbing; he says in the FAQ though, that he finds the fact that people are publishing that data in the first place is.
Kakavas says the tool was not created to assist stalkers, but to make people "think twice" about opting in to geolocation features on Twitter. He does note that Cree.py may have practical applications in penetration testing, gathering information to evaluate social engineering attacks and invites developers to fork Cree.py and write modules for services which are not currently supported.
Cree.py can currently retrieve infomation from all variants of Twitter's tweet location information, geolocation data from image hosting services or EXIF tags in photos posted. It only currently supports Twitter and retweeted Foursquare checkins but it is already able to access photos on Flickr, Twitpic, Yfrog, Img.ly, Plixi, Twitrpix, Foleext, Shozu, Pickhut, Moby.tu, Twitsnaps and Twitgoo and extract their EXIF tags. It can then present its results through a desktop GTK+ application using maps from Google, Virtual Maps or Open StreetMap.
Instructions for installation are available for Ubuntu 10.10, Backtrack 4 and Windows. The Cree.py code is licensed under the GPLv3 and the source can be downloaded or cloned from the projects's Github repository.