I loved this episode of the Rework podcast about the release of HEY World. Here’s how it works: once you've signed up for a HEY email account you can then send an email to firstname.lastname@example.org. Your message will become a webpage (like a blog post) which people can then sign up to and receive notifications via RSS or email (like a newsletter).
Spoilers: I love this idea.
This is probably the biggest indictment of modern web design...when you take the web back to 1.0 and it feels new again.