SeaFile is the next-generation Open Source Cloud Storage with advanced features on file syncing, privacy protection and teamwork. SeaFile allows you to organize files into libraries, where each library can be shared between users and into groups. The library can also be selectively synced into any device. You can edit and comment files online. Messaging, group discussion, activity notification and file versions also available with SeaFile, and able to access files from mobile devices.
Copy.com is relatively the latest cloud storage provider – similar to the likes of Dropbox, Google drive etc, with native support for Linux platform. Copy allows you to share files with others, from the web interfaces or from the desktop client. The apps keeps your files in sync between your computers and available on your mobile devices so you always have what you want, anywhere. Copy.com entered into the cloud storage arena in 2013 and since then, it had gained popularity.