Google is offering rewards to people who leave do basic tasks while using the Local Guides feature recently added to Google Maps. Local guides helps you get local insights on the local businesses/listings which are often missed or unlisted in the original generic listings.
First reported by a Redditor, who received the 1TB storage even before knowing about this new system. Once you sign up, you can contribute to Local Guide in Google maps to earn points based on the review, photos and other questions you answered regarding the local business you visited. This will in turn unlocks rewards. This is where you get your free storage.
Overview of what you'll unlock at each level.
Level 1 (0 - 4 points): Enter exclusive contests (think new Google devices!) in select countries.
Level 2 (5 - 49 points): Get early access to new Google products and features.
Level 3 (50 - 199 points): Show up in the Google Maps app with your official Local Guides badge.
Level 4 (200 - 499 points): Receive a free 1 TB upgrade of your Drive storage, allowing you to keep all the stories, photos, and videos from your travels in one safe place.
Level 5 (500+ points): The very top Local Guides will become eligible to apply to attend our inaugural summit in 2016, where you'll be able to meet other top Guides from around the world, explore the Google campus, and get the latest info about Google Maps. Look out for details early next year.
And that's it. Each contribution is at least 1 point so Download the Maps app on Android or iOS and get started to do you 200 reviews and get your 1TB storage quickly.
Source : Google Maps Blog | Get your favorite places on the map with Local Guides