| You can go one step further than allowing comments by inviting contributors to edit the work directly. You must decide whether their role is collaborator or editor, or something in-between.
Contributors will be given permission to make changes to the content which saves you time and effort but of course means that you relinquish some control. Fortunately there is a mechanism to "roll back" changes after the fact, if a contributor does something that you do not agree with. |