Use Google Social Circle

Today I was searching for techshali.com and at the end of the page Google showed me a result from my social circle. Social Circle is a service from Google. If you have social connections or you have created your Google profile, have friends in Google chat, Google Reader, Google Buzz, Google Contacts etc. And if you are logged in with your email ID you can get suggestion from Google Social Circle.
Aim of Google circle is to help you find relevant public web contents from people in your social circle.
In my social circle I have 508,430 direct connection from my Google chat buddies and contacts. I have 150 direct connection from links.