Points of Interest or POIs are useful places on the map. Here are some examples:
Your Blue&Me-TomTom 2 navigation device comes with a European-wide list of Fiat, Lancia, Alfa Romeo, Fiat Professional service points and Chrysler service points in the UK and LPG/CNG gas stations. These are all stored as POIs and you can navigate to any of them as a destination.
When you need to service or repair your car or fill it up with fuel, you can choose a POI, view the contact information and then navigate to it.