I have two WordPress installations running and one of my installations has profile contact info fields for E-mail, Website, AIM, Yahoo, IM, and Jabber / Google Talk.
The other only has fields for E-mail and website.
The only difference I can think of is the one with the extra fields was started from a previous version than the one with the less fields. They have both since been updated to 3.7.1, but I'm not sure if that would make any difference.
I'm trying to figure out why they are different. I haven't made any changes to the functions.php file to add or remove any fields.