A website that goes by the name of "PleaseRobMe. com", seeks to bring to the forefront the potential danger of updating your every single move on social networking sites.

Launched on February 16, the new site makes its point by illustrating just how easy it could be to rob people on their face, based on the information they're posting on the web 'themselves'.

This is how it all works: The site uses streams of data from Foursquare, an increasingly popular location-based social network that is based on a game-like premise. Players use smartphones or laptops to "check in" to a location, recording their position on a map for friends using the service to see. The more often you check in, the better your chances of being declared the mayor of a particular location, be it a restaurant, bar, office or even your own home.

Boy van Amstel, one of the founders of PleaseRobMe. com, says, "The problem comes when users also post these Foursquare locations to Twitter. Then the information becomes publicly available, making it theoretically possible for a robber (or anyone else) to keep tabs on when you say you're in your home or not".

"We saw people 'checking in' at their home addresses, or even worse, those of their friends and family", says Von Amstel. "Which we just thought was very wrong".