"Their location can be viewed by other users with similar phones or through Bliin's website where the positions are superimposed onto Google Maps." ~BBC News (June 19)

If you have a GPS enabled phone and you join Bliin your friends will be able to track your every move. They can see where you are and even know how fast you're driving.

Once you sign up for Bliin and log in with your GPS enabled phone your friends will be able to track you from their phone, that is also logged in to Bliin, or from the Bliin Web site.

You can always see what other people, who are also logged in, are near you. Also, you can take pictures, audio and video of the area and leave it at that location for others to see and listen to.

Of course you don't want just anyone tracking your whereabouts. That could be dangerous. This is what Stef Kolman from Bliin has to say about that, "We offer our users visibility settings so you are not always visible to the public at large. You can choose to be visible only to your friends or even only for yourself so you can record your experiences."