  This contribution to "Solar Magnetic Variability and Climate" reviews
small-scale magnetic features on the solar surface, in particular the
strong-field but tiny magnetic concentrations that constitute network and plage
and represent most magnetism outside sunspots and filaments. Where these are
mostly of the same polarity, as in active-region plage, their occurrence varies
with the activity variations measured by the sunspot number, but when they
appear bipolar-mixed on small scales they can also result from granular-scale
dynamo action that does not vary with the cycle.
