I heard about this tool, made note of it and finally had a need to use FaxZero I found it to be a great free service.

On those rare occasions when you need to send a fax (electronically to a ‘real’ fax machine) give it a try. You can send 2 free faxes/day to anywhere in the U.S. and Canada. You’ll receive a confirmation email once your fax has been successfully sent.