What's the difference?
'Wissen' is used for abstract knowledge- that is, knowing facts or how to do things. 'Kennen' is used for knowing people and places.
Nice and simple, which makes a change for German. :)
If I can substitute familiar with for know then I use kennen. (Hey, ich habe meine erste Formatierung gemacht. :-0) Mr_Eyl, du bekommst definitiv einen Lingot!