We had covered about ways to post an update to Twitter and Facebook from Google+. Start G+ is a new extension for Google Chrome which allows you to easily post to Twitter and Facebook, the moment you post an update to Google+. As of now there is no direct way to post to Twitter and Facebook from Google+ and this extension could come in handy for people who want to cross post the updates to other social networks directly from Google+.
Apart from cross posting, it also adds a Gmail inbox notifier to the top bar, so that you do not have to keep a Gmail tab open. Clicking on the Gmail icon shows a menu with the unread messages that let you access your emails directly inside Google+.
When you click on the icon, you get a preview of the inbox directly without actually having to open it. For posting to Twitter and Facebook, you need to login to both the services on your Chrome browser.
This extension is really handy for people who want to post an update to multiple social networking services easily.