Shack Article Sharing is a very simple and ready-to-use plugin, capable of including the following components to your site:
- Facebook's OpenGraph tags for each of your content articles and blogs
- Facebook's Like and Send button (including how many and which people has liked the article)
- Twitter's Tweet button
Although it can be configured, the plugin doesn't need much more settings than enabling it to make it work in all your site's content articles:
- It will show all the buttons in your articles and blogs (article by article).
- It will grab your meta-description and meta-tags to set the descriptions into Facebook's OpenGraph (if they're not set, then it will take the first 140 characters of the article).
- It will grab the article's images to set them to Facebook's OpenGraph.
You can see the three buttons, and the OpenGraph tags working in this articles and all the documentation.