Netgen Open Graph is an extension for eZ Publish CMS that allows simple integration with Open Graph protocol, either official or compatible with Facebook.
Extension will, for configured classes, output Open Graph meta tags in the page head. Those tags will be used by Facebook Like button to properly generate corresponding Open Graph representations (nodes) in Facebook Open Graph tree.
All configuration is done through one ini file (ngopengraph.ini), allowing for very simple and painless installation and flexible use.
You can find the project page on projects.ez.no