Google+ Toolbar for Google Chrome
Ziplbar Plus for Google+ is a Chrome Extension that enables you to view your Google+ notifications and more from any website. Once installed, you'll never miss another notification, even when you are browsing other social networks. You can also quickly share the current page using the Share box. All the tools you have on Google+ are now available anywhere you go! You can even use the zipl.us quickjump bar to find your friends by Nickname.