I’ve previously mentioned Globus, the service that allows you to transfer files to/from/between WestGrid sites from a handy web application. That article can be found here.
Compute Canada recently started rolling out a new service from Globus, called Globus Connect Server, that further enhances this application. The main benefit from the new Globus Connect Server is file sharing. With this, you will be able to share files from any WestGrid site and make them available to anyone, anywhere, as long as they have a free Globus account. It is currently only configured to share from Silo, however.