New branches of spin waves spectra in non-ferromagnetic conductors and two-dimensional electron gas were predicted. The resonance (local, quasilocal and magnetoimpurity) electron states on impurity atoms were taken into account. Near frequencies of electron resonance transitions between spin split resonance levels and Landau levels there exist weakly damped spin magnetization oscillations called magnetoimpurity spin waves. A physical cause for existence of these waves is localization of electrons on impurity atoms stimulated by a magnetic field. The localization attenuates dissipation...