You get a link saying something along the lines of:
Is this really you!? S An it has a link going to somewhere called gigacities or something like it with your email address on the end of it.
Whenyou click the link i infects your pc with a virus.
I dont know exaly what it does but my comp was bombarded th lot fop up spyware and stuff so i hanged my password and run some anti virus and adwarprograms and all seems to be fine!