Google adds same-site recommendations to +1 buttons, but only for platform preview testers
On the eve of its I/O event, Google is continuing to roll out new features, one of which is expanded functionality for its ubiquitous +1 sharing buttons that can be found all over the web (and on this site). For users that are a member of its platform preview test group, other than clicking once to +1 something, or clicking again to share it on Google+, now on mouseover it will display recommended pages as seen above. According to the corresponding blog post, it pulls in related content and stuff shared by friends, and will only display selections from the same domain or subdomain as the page the button is on. Google anticipates this will go live to all users "in the next few weeks", if you can't wait until then hit the more coverage link below to join the preview and give feedback on how well it's working.
