Chinese cloud service offers 36+ TB of free storage (!!!). The biggest disadvantage here is that the whole website is in Chinese, but apparently there are several translations and guides in other languages available online. Immediately after the registration you get 7 GB. Once the desktop client is installed you get another 10 TB. If you install a mobile client, you get additional 26 TB. And then you can increase it even further by clicking through ads, promotions, etc.
Via Yuri Timofeev.