pro said:your service provider assigns a static IP address to your connection which does'nt change. you are also given dynamic IP address for surfing which gets assigned to a new user once you log off. static IP tracks you down. if you use annonymous surfing sites like annonymouse.com , you surf VIA their sever and as far as i know you can't be tracked down.
by the way. I have read in times of india bombay long ago that militants in kashmir vally use "dead letter" communications. they just distribute a common email id with passwords among themselves and save EACH communication in the DRAFT folder. by this way no mail is sent.... SO NO QUESCTION OF TRACKING.....