In my case, big lesson learned was how trustworthy and effortless Evernote made the process for me. As I finished every major input, I copied and pasted several pages of work into a shared Evernote notebook for a subject matter expert to review off site. This subtle little process took only a few minutes--the time required to select-all, copy, click new note button, and paste. I let Evernote synch itself. Within 15 minutes, a simple text from the subject matter expert let me know everything looked good from another editor's window.
I believe in Evernote and hope that my entire office adopts a practise of keeping an active synchronised notebook on their handsets. If they do, I believe we will have reached a new level in collaboration. It helps that Evernote is free for Android, iOS, Symbian and Windows Phone. We use all of those handsets where I work.
We also started using Facebook as a group blog. Like Posterous, Tumblr, Google Plus and other easily-managed sites, a jointly-run Facebook group is another way of trading links or sharing ideas. It is the first time that we've tried collaborating in a shared publishing initiative. You can see it by visiting (and liking) the Creative Multimedia Page on Facebook.