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Aptly named, desktop application Creepy is software that calls itself a 'geolocation information aggregator'.
After downloading and installing the open-source software, you can stalk a user via Twitter and Flickr accounts.
If the user has posted any location data, then the software tracks it -- helping you to pin them down. I was surprised at just how data can be aggregated from seemingly innocuous updates -- although as it compiles and analyzes a lot of data, it can take a few attempts before Twitter accounts are connected successfully.
- Map providers : Google Maps, Virtual Maps, Open Street Maps.
- Location information retrieval from :
- Twitter's tweet location
- Coordinates when tweet was posted from mobile device
- Place (geographical name) derived from users ip when posting on twitter's web interface.
- Geolocation information accessible through image hosting services API EXIF tags from the photos posted.
Image credit: Creepy