Surface and interface magnetism is described in terms of hybridised 3d-states for artificially structured materials like nanoscale magnetic multilayers, nanocrystalline and granular magnetic ones. A part from the problem involving intrinsic physical properties of reduced symmetry systems, artificially structured magnetic materials are of great technological importance especially in magnetic recording media. For multilayers, this application is based on the concept of interfacial perpendicular magnetic anisotropy. The essential role of interfacial anisotropy is demonstrated for Fe/X multilayers with X = Ti, V, Y, Gd and Pt. Interface contribution to giant coercivity in Fe-Cu granular films is discussed. Attention is focusing, in particular, on the magnetostriction in Fe-based nanocrystalline alloys and spring-magnet type TbFeCo/FeCo multilayers. Finally, magnetism in irradiated Tb/Fe multilayers is presented.