Recently Google opened up it’s Friend Connect Application to all which helps webmasters to add social features to their sites quickly. Twitter is one of the most popular micro-blogging network helps you to expand your network.
To help you and your Twitter network stay connected no matter where you are on the web, Google announced that Google Friend Connect has integrated with Twitter. This means that when you join a friend connected site, you can choose to use your Twitter profile, discover people you follow on Twitter who are also members of the site, and quickly tweet that you have found a cool website.
To send a tweet about a site you have joined, click the invite link in the members gadget, then click the Twitter icon on the share tab. The next time your followers sign in to Twitter, they'll see a your tweet containing a link to the interesting site you've found.