If you, like me, often forget to regularly visit your friend's blog. (Or if you're a friend of mine and are tired of showing up only to find something pretty useless posted...)
Check out the new option on the right-hand side of this page. If you put in your e-mail address, you'll get an e-mail when I update my blog.
At most, you'd get one e-mail a day, no matter how many posts I put up.
And what else is cool? You can add this to your own blog and then I can sign up and get notified when you post new stuff to your blog.
It's still only a maximum of one e-mail a day -- the system looks at all the blogs that you've asked for updates on, looks to see which ones are updated and then rolls it all up to a single e-mail. Very handy!