The new “contacts manager” by Google allows users of services like Google Docs, Picasa, and Calendar to use these services without first having to be Gmail users.
Google Contacts operates similarly to other contact functions, and allows users to share contact information conveniently between the different services. For example, you can import/export contact from third-party sources like Outlook Express, Outlook, Yahoo, and even Hotmail. Apple users can use the application called “A to G.”
For organizations that are using Google Apps, the administrator will have to enable this functionality within the control panel by clicking on the “add more services” link, finding the “Contacts” option and clicking the “add it now” button.