Me neither. A lot of what I do (proposals, specs) requires multiple people making simultaneous changes to a document. I do however not have to do the edit-emai

Me neither. A lot of what I do (proposals, specs) requires multiple people making simultaneous changes to a document. I do however not have to do the edit-email-edit thing. We use SharePoint at work, which lets all of us make changes to a document in realtime. This works inside and outside the company. The partners we typically collaborate with authenticate using identity federation. It works really well for us.