Free and simple plugin for Joomla 2.5. Share Social Buttons is easy and free plugin that allows the social buttons to share content.
(twitter, facebook like, send facebook, facebook Share me, google plus).
On Open Graph protocol label for the correct display photos (Facebook Like Facebook Share)
In the plugin options to choose from:
Display language selection and layout
Display options above and below the article
Left and right
Easy to select a category