Minus lets you drag files from your desktop and folders directly to your browser to start sharing or via our desktop and mobile apps. Minus is really good if you need more online storage.Free 10GB for sign up and up to 50GB if you invite to your friends. One of your friend accept and sign up, you will get 1GB space. Moreover Minus is free for all platforms desktop application such as Window, Mac, Linux and mobile application such as android, iPhone, W7(coming soon) are also available. If you don’t want to download application, you can use browsers extension for Chrome and Mozilla Firefox. The last thing I like best of Minus is open source application you may use API here.
Please click above link and sign up account to get free 10GB space!