FileFactory is the easiest way to upload and share your files in the cloud for free. Get unlimited storage space plus unlimited downloads with a Premium account.
File Sync & Online Backup - Access and File Sharing from Any Device - SugarSync Your Cloud
SugarSync's file sync, online backup, and file sharing service makes it easy to stay connected. Get free, secure cloud storage for all your files -- documents, music, photos, and videos.
4shared.com - free file sharing and storage
Online file sharing and storage - 15 GB free web space. Easy registration. File upload progressor. Multiple file transfer. Fast download.