What are some alternatives?
Dropbox - Online Sync and File Sharing
Google Drive - Google Drive is a personal cloud storage service from Google that lets users store and synchronize digital content across computers, laptops and mobile devices, including Android-powered tablet and smartphone devices.
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
SugarSync - SugarSync is a cloud file sharing, file sync and online backup service that is simple, powerful and easy to use. Get a 30 day free trial!
Mega - Secure File Storage and collaboration
Microsoft OneDrive - Secure access, sharing & file storage