Google Social Search concepts follows the so-called 'real-time' content search with Google Profiles and custom search results, allowing searchers to find content created by friends or contacts in Google Profiles. It provides your Gmail contacts and friends on public social-networking services with the content you've linked to your Google Profile, such as blogs, Twitter or Friendfeed accounts.
Social Search links will be placed at the bottom of the search results page for now, and searchers will have the option to refine the search results page with a new 'social' link on the left-hand side of the page to focus just on content from their network. The results are specific to you, so you need to be signed in to your Google Account to use Social Search. For Gmail users, chat buddies and contacts in your friends, family, and coworkers groups will also be included. And if you use Google Reader, some websites from your subscriptions will be included as part of your social search results.
Google had also earlier announced that it had entered into an agreement with Twitter to bring real-time 'tweets' to search results, whose services are yet to be launched. However, this latest move by Google is viewed by analysts as a shrouding of its earlier purported deal for acquisition of Twitter.
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