When I first read about Postful I thought perhaps it was an April Fools joke like the Gmail Paper launch. However, after looking into it, I don't think it is.

Postful allows you to send an email to Postful which is printed out and posted to the recipient for the cost of 99cents. Do people send letters anymore? I can't think of the last time I got a personal letter from anyone. I get the odd postcard now and then.

Maybe they will find their niche, on their website the ask the question - so, why would I use this? This is their answer:

Most of us know people who can't receive e-mail. For me, it's my grandparents. For others it's a friend in the hospital or in the military. We'd like to write, but between stamps, envelopes, printing, and mailing, it doesn't get done. With Postful, it's as easy as sending an e-mail. You can even create unique e-mail addresses for frequent contacts so that you don't have to type in their mailing address each time!

In business, you don't have time to deal with letters. We put a corporate mailroom in your e-mail client. Postful is smarter, faster and more cost-effective than stocking stamps, envelopes, and letterhead (not to mention wasting your time stuffing letters). Whether in a busy office or on the go, Postful will change the way you work.

Good luck to them, it's a neat little site performing a service I'm sure someone somewhere will need.