30 Boxes | Online Calendar
Excerpted from the website description:
- 30 Boxes is almost certainly the easiest way to share your calendar and your web stuff online. Organize your life, share all or parts of it with friends. Post it to your blog. Track your friends online including their Flickr, Webshots, Vox, Facebook, MySpace, blogs, and more! It's quite simply the world's most open social network.