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 rated—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.
MyContactDetails.com In Their Own Words
“myContactDetails.com is a fully functional online address book where you can store and share your contact information.
Why MyContactDetails.com It Might Be A Killer
MyContactDetails beats your regular, old paper address book; you don´t have to deal with illegible scrawls and faded ink. The site has an easy to use interface, and while simple, it´s very useful.
Some Questions About MyContactDetails.com
These days people have PDAs and tricked out cellphones that carry all the info you´ll need. It´s more practical to have your address book at hand whenever you need it, without having to log onto a computer to find someone´ birthday or phone number. 
