- Publish to followers (email pushed into the inbox of anyone of chooses to follow you - a Twitter equivalent)
- Publish to web (email published on your public facing blog)
- Publish to private blog (email published on your private facing blog - something that only your friends can read - similar to Facebook status updates)
The publish to followers could actually use email protocols, however there would need to be a separate web interface where people chose to follow / not follow you. Likewise the web interface for public and private blogs would also be required.