Via bbc news : "faxing is more popular than it's ever been. Last year an estimated 40% more pages were faxed than the previous year (although the number of fax machines in use remained about constant)."
But why ? - A signed document sent by fax is admissible as evidence in a court while a simple e-mail may not be. - The fax machine has insinuated itself into the world of digital communications to such an extent that the distinction between a fax and an e-mail is increasingly blurred. And you don't even need a computer to receive e-mails - if you have a fax machine. E-mail-to-fax services exist