How Do You Promote Old Posts?

Hi Guys,

I use Tweetily (phenomenal Wordpress plug-in) to promote old Twitter posts and it will routinely tweet out headlines of old posts while driving a link to them.

I am having a hard time doing the same with Facebook. I wanted to check to see if any of you had luck in this department or if you knew of any plug-ins that can promote old posts on Facebook while keeping them natural looking.

Expire old posts to drafts, re-post