Storytlr is an open source lifestreaming and micro blogging platform. You can use it for a single user or it can act as a host for many people all from the same installation.

With just two short PHP files, a SimplePie installation, and a little RSS icon to pretty things up, you can create your own stand-alone lifestream, tying together all the content you're publishing on the web into a single source.

Sweetcron is a free self-hosted lifestreaming application that is easily customized with themes and extensible through plugins. It was developed with the CodeIgniter php framework.