A very useful tool I use, mainly for backing up online and sharing files within my own network , but it has the potential for much much more is Dropbox. Yes, there is an upgrade option, but you can use the free version very well. There is also an option to get more free storage space when someone you tell about Dropbox signs up.
So what does it do? It lets you share your files and folders with others by sharing an existing folder on your PC or creating a new one to share. Once you add other members to the folder, it will appear in your friends or colleagues own Dropbox just as it does in yours. Any changes made to the shared folder’s contents will appear instantaneously to everyone who is a member of that folder. You can create a folder in your Dropbox folder just as you would anywhere else on your hard drive.Can you see the potential in this?
There are two ways to setup Dropbox, as a local application or online. The procedure is pretty much the same either way.