step 1: turn off caplocks. This may be preventing you from guessing it I can guess most of my friends email and networking site passwords when I really sit down and try, so before you do anything extreme, take about an hour and try to guess it. Try any combination of dates that may be important to them, names of significant others, locations, pets, stuffed animals, etc. Try each password several times with different combinations of capital letters. Typically the first letter in the password or the first letter in each consecutive word may be capitalized. Also try inputting numbers after lettered sections, a "1" after the lettered portion is pretty common. Even before you try this, talk to your daughter. She will freak out if you suddenly have info on her private life and matters that she expected to be secret to you. This will be a HUGE breach of trust, and should be avoided at nearly all costs unless it is truely a dire situation and she is potentially in danger. If all else fails, you can buy numerous types of software from online stores and some retailers that will track all data sent between your computer and internet locations, programs that can let you remotely watch the screen of a computer that it is installed on, and even log every keystroke that is entered on the system. Just remember that if you do break her password, all hell is going to break loose.