Password Reset Flag:  This script will allow your Google Apps admins to scan for users, and reset passwords in bulk.  For more information, you can view and test out this FREE addon HERE.  Once you scan for all users, the spreadsheet will populate with the Full Name, Email Address, and Password Reset Flag.  Update the Password Flag to True or False, and then choose Process Changes from the menu, and they will be updated.  Anyone who is set to TRUE will be forced to change their password when they next log in.