Blog, Event, Poster, Presentation, Publication, and Video pages now have groovy share buttons. Now when we add content to the site, we can simply click on one of the buttons and share a snippet of the article to our friends and people we don't know on the Internet. Look for the buttons (below) at the top of the pages listed earlier.
The share buttons. Facebook, Twitter, Google Plus, LinkedIn and email are always shown. Click the "Plus" button to see more.