With the ever more pervasive location tracking of cars, through our mobile phones and devices, and our use of public transport, all sorts of interesting applications suddenly become possible. One of them is havewemetbefore.com. Enter the name (or even better, upload a picture) of someone you just met, and it will find all past moments that you and your new acquaintance were actually at the same location. A great way to find out how many times you and your new lover (for example) didn’t spot each other at a party, or simply passed each other on the street…

A privacy friendly (mmm…) version asks permission from the other part first, of course…

P.S.: The Dutch version could be called “kenikunietergensvan.nl”.

P.P.S.: The domain is for sale.