The Read Green Inititive is trying to help the environment by getting people to subscribe to magazines in digital format. To do this, they are offering a free subscription to the digital magazine of your choice, with over 200 magazines to choose from including Popular Science, Reader’s Digest, Home Theatre, Elle, Sound & Vision, Penthouse, Car and Driver and many more.
All you have to do is to go to this page, and then follow the instructions.
You can get multiple free subscriptions if you use more than one email address. However, the Read Green Initiative will send you emails regularly, so beware of this if you are using your primary email account.