The Yahoo! Address Book is an online contact manager similar to your old-fashioned paper or desktop address book -- except of course, with many more features and functions. Use it to store all your contact info on individuals and companies. And because it's online, you can access anywhere in the world there's an Internet connection.

In addition to being fully searchable, the Yahoo! Address Book lets you group contacts into categories that you create (for example, make categories like "Work", "Family," or "Bowling Team".) You can have contacts in multiple categories, and the contact information includes all the information you have for them – not just email addresses.

For added convenience, with the click of a mouse you can send a group email to everyone in a category. (FYI: Given our concern about spam, we do reserve the right to limit the number of recipients you have for any single email. In the rare case that you exceed our allowed number of recipients, we'll let you know with a quick message.)

The Yahoo! Address Book helps you learn about your contacts and communicate with them. Just click on an email address to send email via Yahoo! Mail. Use tools like Yahoo! Maps or Yahoo! Yellow Pages to get information about a contact's location or find businesses located near their address.

Oh, and just in case you're highly, highly social, your Yahoo! Address Book can store up to 5,000 contacts.