FILE- In this Thursday, July 16, 2009, file photo, a Facebook user logs into their account in Ottawa, Ontario, Canada. In yet another change that irked users, Facebook has replaced the email address you picked to display on your profile page when you signed up for the online social network with an (at)facebook.com address. Previously, users may have had a yahoo.com or gmail.com address displayed, so that if people wanted to contact them outside of Facebook, they could. Sending an email to a Facebook.com address will land the email in the messages section of your Facebook profile. (AP Photo/The Canadian Press, Sean Kilpatrick)

Associated Press
FILE- In this Thursday, July 16, 2009, file photo, a Facebook user logs into their account in Ottawa, Ontario, Canada. In yet another change that irked users, Facebook has replaced the email address you picked to display on your profile page when you signed up for the online social network with an (at)facebook.com address. Previously, users may have had a yahoo.com or gmail.com address displayed, so that if people wanted to contact them outside of Facebook, they could. Sending an email to a Facebook.com address will land the email in the messages section of your Facebook profile. (AP Photo/The Canadian Press, Sean Kilpatrick)
FILE- In this Thursday, July 16, 2009, file photo, a Facebook user logs into their account in Ottawa, Ontario, Canada. In yet another change that irked users, Facebook has replaced the email address you picked to display on your profile page when you signed up for the online social network with an (at)facebook.com address. Previously, users may have had a yahoo.com or gmail.com address displayed, so that if people wanted to contact them outside of Facebook, they could. Sending an email to a Facebook.com address will land the email in the messages section of your Facebook profile. (AP Photo/The Canadian Press, Sean Kilpatrick)
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