You could use something like Grive[1] to sync a folder with Google Drive.
If that folder happens to be within your Dropbox folders, then the files
will be synced to both services. Be aware that Grive has it's limitations.
[1]https://github.com/Grive/grive
On 18 August 2014 10:25, Edward Beckmann
Firstly, thanks to those who have come up with suggestions. Although
interesting, it proves that my original post was too vague. Thanks to all
of you who have the patience to have another go.
Problem
> I use a hosted training system from which I want to link to files which a
few people can edit.
