Visitors can now share links to Web pages with their Google Plus circles by clicking +1. It opens a box for adding a comment, and it allows the reader to customize the snippet (also known as a +Snippet) of text and images that will appear in his or her stream. It also adds the option of in-line annotations, like Facebook Like buttons do, so you can see the names and faces of friends who have +1'd a page.
Now that +1 can finally put some social oomph behind a page, it's a good idea for web masters to format their pages to suit it. The Google Webmaster Central blog shows how to identify the page elements that will go into a page's +Snippet by default.
Here's more from the Google Plus team:
Meanwhile, as Google +1s its social sharing feature, Facebook's ubiquitous button just got disliked in Germany. The Like button is now illegal in the state of Schleswig-Holstein for violating privacy laws.
When you want to share a Web page with your social networks, which buttons do you click? Sound off in the comments.