From the site:
Jaiku"Jaiku's main goal is to bring people closer together by enabling them to share their activity streams. An activity stream is a log of everyday things as they happen: your status messages, recommendations, events you're attending, photos you've taken - anything you post directly to Jaiku or add using Web feeds. We offer a way to connect with the people you care about by sharing your activities with them on the Web, IM, and SMS - as well as through a slew of cool third-party applications built by other developers using our API."
