Remove Your Personal Accounts Permanent

Hotmail / MSN / Windows Live Accounts
https://account.live.com/CloseAccount.aspx

http://mail.live.com/mail/CloseAccount Confirmation.aspx

YAHOO MAIL ACCOUNT REMOVE

https://edit.yahoo.com/config/delete_user

FACEBOOK ACCOUNT REMOVE

http://www.facebook.com/help/contact.php?show_form=delete_account

TWITTER ACCOUNT REMOVE

http://twitter.com/settings/accounts/confirm_delete

LINKEDIN ACCOUNT REMOVE

https://www.linkedin.com/secure/settings?closemyaccountstart