Apparatus, systems, and methods may operate to detect modifications made to information, the modifications received from a modifying user included in a group of users sharing the information by separately viewing presentations of the information. The presentations may have any number of views, such as a first view and at least a second view. Further actions may include transmitting first view data to enable altering the first view for the modifying user based on the modification made, whether the modification comprises a propagating change or a non-propagating change, and if the modification comprises a propagating change, transmitting second view data to enable altering at least the second view for at least some of the group of users, not including the modifying user, based on the modification. If the change is a non-propagating one, then the activity may include refraining from transmitting the second view data. Additional apparatus, systems, and methods are disclosed.