sorry that i didn’t found a better title description, but i find this (free) service quite superb.
(for Mac / Windows / Linux)
Suppose you need to share/sync files over the Internet from your laptop / home machine or
computer at work this service is really cool. You get 2GB of free disk space and can
invite your friends / clients / co-workers to share your folder(s). Very easy to use and best for
me is that i no longer need to carry a USB stick with me, or e-mail files from location A
to location B etc, or ftp files.
Hope you find this service also useful!