Without a doubt, the neatest concept since the internet met documents.
A single folder, free for the first 2GB, to put your files online.
Meshes with the file system on your computer transparently: share any file of any size.
Automagically syncs that folder across your devices: Mac, PC, iPhone, iPad.
Share a file with a public link. Collaborate with shared folders.
Secure, private, simple.
From their webpage:
Invite your friends to Dropbox!
“For every friend who joins Dropbox, we’ll give you both 250MB of bonus space (up to a limit of 8GB)!”
Sooooo… Please sign up using my referral link