A new interesting feature has made it to Gmail Labs: Preview Pane. If you've used desktop email clients like Microsoft Outlook on Windows or Mail on Mac, you already know what we're talking about: a sidebar pane where the content of the selected message is displayed for faster email checking. With the new Preview Pane feature you can now have that functionality in Gmail too. Here's how:

1. Log in to your Gmail account and select Labs from the drop-down menu on the top right corner.

2. Browse down to Preview Pane and click on Enable. Go all the way up or down and press the Save Changes button.

3. You'll see a new button on top of your message list, from which you can switch between the standard view and the new view. You can also choose to have the pane on the right side (vertical split) or at the bottom (horizontal split) of the screen.

4. And here's how Gmail looks with the new Preview pane enabled.

Remember that Preview Pane, just like all other features offered in Gmail Labs, is still experimental. Don't be surprised to find the odd bug!