Facebook account hacking Tech:

create two(2) facebook accounts with single email id..
just follow the given steps:-
using gmail account

first account is create with using your id eg-your.name@gmail.com.......then
second account is created with the same id with a small change remove the dot from the email address eg-yourname@gmail.com..

using yahoo account

first account is created using the id eg-yourname@yahoo.co.in
then
second id is created with some twist remove .co from email address eg-yourname@yahoo.in...

and thats the magic you will receive the notification or email alerts of both account on the single email id..