Posterous is a relatively new online blogging service which allows you to post things easily to your new blog via e-mail.

You can even attach all kinds of files to your e-mail and they will go online, pictures will be displayed, multuple pictures will be displayed as a gallery, YouTube links as an embedded YouTube video, etc.  Check out all the cool things you can do with it in their FAQ.

Signing up for a Posterous account is dead simple.  Actually, you don’t even have to sign up at all, all you have to do is send an e-mail to post@posterous.com and within a few minutes you’ll get an e-mail back confirming your post and a link to that new post.  There’s also a link to edit or delete that post.

At this point, they only give you a temporary subdomain, but there’s also a link in the e-mail which will take you a page where you can give your account a password and choose your own subdomain (if it doesn’t already exist, of course).  I chose thedonkey.posterous.com.

The cool thing about it is that you can use posterous.com to post to your other sites via e-mail  as well.  One reason this is cool, is that I have been looking for a quick way to post to Twitter via e-mail, since twitter itself doesn’t allow this.  I’ve tried the Twitterrific (link opens in iTunes) app on the iPhone, as well as the online services hahlo.com and PocketTweets.com, but sometimes it’s just easiest to fire up an e-mail message and send it that way.  With Posterous it gives you individual addresses for each service, or one address to post to all services.  For instance, if I send an e-mail to twitter@posterous.com, it will post to only my twitter account.  Cool, huh?

Another cool thing I’m going to try and use it for is updating my Facebook status via e-mail.  Once I’ve set up Posterous to use my Facebook account, I just send an e-mail to facebook@posterous.com and it will update my status.  Double cool.

I’ll post back here about how it’s going.  Maybe even via Posterous.