G+ apps add-ons extensions etc..
Extended Embed BETA for Google Plus
Translate for Google+
PinIt for Google Plus™
G-Minus - Kynetx for Google Chrome
Using Google+? Add Mashable to your circles. You'll get the latest about new Google+ features and tips and tricks for using the platform as well as top social media and technology news. Google+ has launched to great aplomb, but its "project" status means some tools have yet to be developed. While Google works on adding more features, some available Chrome extensions can fill the functionality gap. Whether you want to get better notifications, enjoy improved sharing options, or scroll through your stream more quickly, there's an extension available — for free — to help. 5 Chrome Extensions That Improve Google+
Using Google+? Add Mashable to your circles. You'll get the latest about new Google+ features and tips and tricks for using the platform as well as top social media and technology news. Google+ Chrome Extensions: 5 More Handy Tools
The Google URL Shortener at goo.gl is a service that takes long URLs and squeezes them into fewer characters to make a link easier to share, tweet, or email to friends. Using a shortened URL leaves more room to say what's on your mind. For example, the short URL http://goo.gl/l6MS is a convenient shorthand representation for the long URL http://googleblog.blogspot.com/2009/12/making-urls-shorter-for-google-toolbar.html . URL shortener : Features - Web Search Help