[en] Detailed information on the inner structure of the nucleon is provided by accurate data on the dependence of the nucleon form factors on momentum transfer q². Such data serve as a sensitive test for models of the nucleon. Particularly at low q² accurate data on the form factors are also needed for calculations of nuclear form factors. Whereas the proton form factors are known with excellent precision over a large range of q², data for the neutron are of much poorer quality due to the lack of a free neutron target. This is true for both the electric form factor, G_en, and to a somewhat lesser degree for the magnetic one, G_mn. With today's high duty factor, high current electron beam facilities like JLAB and MAMI, and the progress made in polarized beam and target technology, significant progress in this area is being made