Embodiments include an apparatus, device, system, computer-program product, and method. In an embodiment, a method is provided. The method includes receiving a signal originated by a handheld writing device and indicative of a handwriting on a surface. The method also includes receiving a signal indicative of a machine-distinguishable tag associated by a user with the handwriting. The machine-distinguishable tag selected from at least two machine-distinguishable defined tags. The method includes performing an action with respect to a representation of the handwriting in response to the machine-distinguishable tag.