Use More than one Google or Orkut Profile in One Web Browser

You can now easily integrate two or more google profile in one account simply by turning on multiple sign-in from your google account setting . If you are interested in activating this feature then all you have to do is to login in your google account your gmail username and password .From google home page click setting in top right corner of browser page as marked in image below.
In google Setting page you will see a Multiple sign-in option which is turn off click edit to turn on that Option and select On option to Use multiple Google Accounts in the same web browser and mark the checkboxes to confirm how to use multiple sign-in in Google account.
Save your Changes and you are done. Now you can easily sign in to your secondary google account in the same browser and switch between them using the drop down at top right corner in same browse.