How many profiles can I have?
With Yahoo! Profiles, you can create up to six additional aliases that you can use instead of your Yahoo! ID. You can use these names in Yahoo! Chat, Yahoo! Games, Classifieds, Personals, Yahoo! Messenger, Message Boards, and Groups.
Each alias that you create has a corresponding profile page that you can customize to let people know about you. Setting up your profile is a great way to increase your presence on the Web.