If your blog was an app on Facebook

If you were to turn your blog into a Facebook app, what features would it have? What would the UI look like? What are the significant dealbreakers you’d need to satisfy to extend your blog to a social networking platform?

I’m marking this as a community wiki because I’m not looking for one answer, but for an array of “best practices” that developers should consider when taking their blog online through a social network. One feature/UI element/dealbreaking necessity per answer please.

My number 1 feature would be to have the ability to use WordPress to manage a fan page.

It would have to have the ability to use a WordPress page to create a Facebook page application tab.

Published posts would auto publish to the Facebook wall and comments would sync between WordPress and Facebook.