Plurk

Plurk lets you showcase the events that make up your life in deliciously digestible chunks. Low in fat, 5 calories per serving, yet chock full of goodness. First, sign up. It takes 10 seconds. Then, just post new plurks which tell us what you're doing, or how you feel, or what you're thinking or anything else for that matter and it'll appear on your timeline. You can tell us on the site, through instant messaging (stuff like MSN or AIM) or by text messaging us an update. Be sure to invite all your friends and see what they are up to throughout the day, it will make Plurk that much more fun for you.