Google VOICE search- Search google in your voice

If you can say it, you can search for it.

You can now search Google by saying your search term, instead of typing it. This could be a convenient way to search if you speak faster than you type or if you're not sure how to spell your search term

Requirements

You can use Voice Search on the English version of Google.com if you're using the latest version of Chrome. If you already have Chrome installed, click the wrench icon and select About Google Chrome to check for a new version. If you don’t have Chrome, you can download Google Chrome .
Make sure your computer has a working microphone. While some laptops and desktops have built-in microphones, others require external ones. You should be able to test the microphone in your computer’s audio settings in system preferences or control panel.

Using Voice Search

Open the Chrome browser and go to http://www.google.com/ . You’ll see a small gray microphone on the right-hand side of the search box.If your browser redirect your corresponding country page like http://google.co.in then enter http://google.com/ncr it will redirect to http://www.google.com

Click the microphone and you’ll see the dialog bubble below indicating that it’s time for you to say your search term.

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Your results show up just as if you had typed the search term.