ContactKeeper Product: ContactKeeper Website: http://www.vani.be/contactkeeper/ Type: Free Requirements: Windows XP/Vista/7 ContactKeeper is a free program to keep contact information about your friends, family, etc. ContactKeeper is in fact an address book with an integrated birthday reminder! It has among other things the possibility to store multiple e-mail addresses and phone numbers for each person. The pick of the bunch is the possibility to let ContactKeeper generate a birthday calender based on the dates of birth of the persons in the database!