I have never found a username of my choice on yahoo , yahoomail is the worlds most popular email service, and it’s hard to get the ID of your choice there.

But they have a solution now.

Yahoo have introduced 2 new extentions, YMAIL.COM and ROCKETMAIL.com

now you can sign up for any ID you want with extensions ymail.com, rocketmail.com; and still have the all features of a YAHOO account.

Get you name now : http://www.mail.yahoo.com