Zinio is a magazine reader for your Nokia Lumia devices it allows you to buy single issues of magazines or subscribe to them. To help get the word out about the service they are offering a free $50 credit to Nokia Lumia users! This sounds kind of hard to believe but it’s true I have tested this offer out myself and I am currently enjoying some free magazines on my 920. How can you get your $50 credit? Click here to claim the credit. The deal ends June 30.