This module uses Facebook URL Linter API to send Drupal published content links to Facebook to make sure that Facebook have always the most recent version of your content that uses for Share link dialog on Facebook timeline.
Main reason why I code this module is that I have a problem on one news publishing portal with sharing a link on Facebook when Facebook doesn't fetch current information (title, description, image) from site but some older one from its cache.
Here is some documentation about the problem and the service that I use in this module Open Graph Protocol (section Editing Meta Tags).
Project page: Facebook URL Linter
Drupal version: 7.x
GIT repository: http://git.drupal.org/sandbox/tomasbarej/1840572.git
git clone --recursive --branch 7.x-1.x http://git.drupal.org/sandbox/tomasbarej/1840572.git fb_url_linter