The plain fact is, every organization has at least a percentage of contacts on our mailing list who can only be reached by traditional “snail mail.” Not only that, some correspondence does need to be tangible — our words do, still, command more authority and more attention when they are printed out on a piece of paper the reader will hold in his hand.

via Wild Apricot Blog : Email-to-Snail-Mail Online Postal Services.

In a way, we’ve come full circle now. We can send snail mail to customers via e-mail or by using a web interface. It makes perfect sense for those you can only reach by postal mail, but you might not necessarily want to manually write out a letter.