Many people sometimes give their passwords to their friends but later they realize that they are in trouble, because many a times their friend misuse the password. Now they are left with only two options, first is, they must delete that account and secondly they must change their account password.
But if they don't know how to change the password, they get only first option. Here I am giving information on how to change the password so that you have the second option also and you don't have to delete your account.
To change Orkut password go to this link and sign in:https://www.google.com/accounts/EditPasswd?hl=en-US
To change Facebook password :
• Log on to your Facebook account.
• On the top menu select Settings and click on "Account Settings"
• Look where it says password and click on "edit"