Access Two Gmail Accounts In Same Browser

Gmail is a service form Google that I am using for my most of email purpose. I think it is more secure than other emailing services. Gmail team is also adding new features to make it more useful. Recently Google added a new feature in GMail, using this feature you can access two GMail accounts at once in same browser or in same session. If you have Internet Explorer 8, you can open two sessions.

This feature is important if you have different Gmail accounts for different purpose. So switching was not easy from one account to another, for this you have to sign out from one account. This is an advanced feature of Google so you have to make sure why you want to turn on this feature. You can use this feature for Calendar, Code, Gmail, Reader, Sites and Voice.
If you also have more than one account in Gmail, you can set this feature using these steps.

Go to google accounts, see in image.

Opposite multiple sign-in click on edit. You will see below page, there click on radio button to select to turn on this feature and check all check boxes. And clcik on save button.

Now this feature will be activated but you would not see any option to sign in another account as you see in below image. So again go to Google accounts and as you see in first image in personal setting third option is email address, there click edit to edit that option and add your another gmail address to associate with your Gmail account. There when you add you other gmail address you will get a message like you can not associate your gmail address with your Google account but ignore that message. And your two accounts will be associated. And you can sign-in them. See below image.