If you're not a power-user of RSS feeds, or if you are, but RSS just isn't fast enough for you, notify.me might be just what you're looking for. Notify.me sends updates from any site with an RSS feed directly to your IM, SMS, or email. Facebook, Twitter and Craigslist are just a few of the popular use cases.

To make notify.me even easier to use, there's a browser bookmarklet you can add, to avoid any copy, pasting or typing when you want to add notifications. You also get a username@notify.me email address, which you can sign up to various email lists with, and then use notify.me to direct those messages whereever you want to receive them. A desktop app that will catch all your notifications is coming soon, and you can already see it in action in the notify.me demo video.