MyContactDetails is an online address book. You can store phone numbers, email addresses, birthdates, and of course street addresses. Contacts can be organized by tags and they can be ratedâ€"don´t worry though, it´s for your eyes only, all info is private. You may share your profile data so that if you´ve moved or recently gotten a new number, your contacts will automatically be updated. If you want to synch your contacts to your mobile or email app, MyContactDetails supports several formats to accomplish the task. You can also create your own calling card via a public URL; append it to your emails, so that people will always have your info on file. MyContactDetails can be used wherever there´s an internet connection, and it´s free to use.