Two months ago I uploaded 200GB+ of my files to my account. Since my first upload, I updated my files at least once a week. Last week I logged in to my account to discover that all my files had disappeared. There is no customer service available. Avoid these guys like the plague.
Mega - Secure File Storage and collaboration
Dropbox - Online Sync and File Sharing
Google Drive - Access and sync your files anywhere
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.
Krakenfiles - Krakenfiles is a file storage. It offers unlimited file storage and 20 MB file upload size.
MediaFire - MediaFire is the simple solution for uploading and downloading files on the internet.