Ever wish you could search Google for something and find out what others in your social network though about that topic? You now can by trying Google Social Search.

First head on over to Google Labs and click “Join this experiment” next to Google Social Search. Once joined, head back on over to Google.com and perform a search. On the results page click on “Show options” then click “Social” on the new menu on the left.

Here’s the results of my search for “ebooks” limiting to social results:

Here’s what Google says Social Search indexes:

• Websites, blogs, public profiles, and other content linked from your friends’ Google profiles.
• Web content, such as status updates, tweets, and reviews, from social services that your friends have listed in their Google profiles.
• Relevant articles from your Google Reader subscriptions.

From this you might have figured out that the more social “stuff” you do using Google-based tools, the better your results will be.