Dropbox

"Dropbox is a cross-platform cloud-based storage application and service operated by Dropbox, Inc. The service enables users to store and sync files online and between computers and share files and folders with others using file synchronization.  There are both free and paid services, each with varying options.

The Dropbox client enables users to drop any file into a designated folder that is then synced to the cloud and to any other of the user's computers with the Dropbox client. Files in the Dropbox folder may then be shared with other Dropbox users or accessed from the web. Users may also upload files manually through a web browser."

- What I like about Dropbox is that anyone you have shared a folder with can put a file into the folder and it is instantly downloaded to your computer. Now I have the file even when I don't internet access!

Key Features:
- File Sync
- File Sharing
- Online Backup
- Web Access
- Security and Privacy
- Mobile Device Access

Click here to visit the Dropbox website.