Adding social media features to email

It should be relatively easy to add social media type features to an email (webmail or desktop) program. For example, when composing an email the following options (tick-box) could be available:

• 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.