1. A system for collaborating, the system comprising: a plurality of computing appliances, each having an input apparatus and a display apparatus, said input apparatus providing an input of annotations providing associated annotation data having an associated display image, and said display apparatus providing a local presentation; memory storage comprised of a plurality of areas of memory providing non-transitory storage; mapping logic, associating for a plurality of the areas of memory, at least one said area of memory with a data layer that is associated with at least one of the computing appliances, wherein there are a plurality of said data layers, wherein a separate said data layer is mapped as associated with each said computing appliance for each of at least two of the computing appliances; storage logic providing storage of the annotation data in the separate said data layer associated with the computing appliance providing the input of the annotation data, for each of said at least two of the computing appliances; selection logic selecting at least one of the data layers from the plurality of data layers to be selected data layers; and providing the local presentation on the display apparatus of at least one of the plurality of computing appliances, responsive to at least a part of the annotation data from the selected data layers.