Sociality is a gem, that copies social-share-button gem, but has more attractive flat-designed buttons, it allows adding "share in ..." buttons for twitter, facebook, google plus and linkedin. You can simply add much more buttons to share. There are many icons in PNG file in app/assets/stylesheets/icons
Add this line to your application's Gemfile:
gem 'sociality'
And then execute:
$ bundle
Or install it yourself as:
$ gem install sociality
Just put
<%= social_share_button_tag(post.title, :popup => "true") %>
tag into your view files where you want to display buttons. All information about gem functions you can find at github account of the original gem https://github.com/huacnlee/social-share-button