Server URL for ProjectWise Web View?

I thought this was a simple question... perhaps it still is.

The question I have is: what is the server URL for my organization's ProjectWise Web View server? It is supposed to end in /ws/, correct?  I am the main contact for our organization, so if a link was provided to us I missed it. I want to allow end users to have read-only access to ProjectWise content (though nearly all of us need and prefer to use PW Explorer). Where can I find this information?

Thanks!