Some time ago a website highlighted the risks of public checkins  online announcements of your whereabouts The sites point was blunt you may think you are just telling the world Hey Im at this place  but you are also advertising your outandaboutness to all kinds of people everywhere  not all of them people you might like to bump into This appeared to confirm the growing awareness that there might be a downside to all the frantic sharing the web has enabled The vast new opportunities to publish any and every aspect of our lives to a potentially global audience hold out all sorts of tantalising possibilities Wealth Fame So we plunge into the maelstrom of the internet tossing confessions personal photos and stories into the digital vortex Too late we realise that the water is crowded and treacherous  and we are lost 