The magnetic and photomagnetic characterizations of two are reported : ploymer/nanoferrite composites and the non-stoichiometric crystalline materials Rb0.73Cr5Te8. In the inorganic-organic composite material, the inorganic component is iron oxide and the organic component is tile polymer poly(p-ethylphenol) (PEP). The Rb0.73Cr5Te8 material is a new non-stoichiometric formulation of the ACr(5)Te(8) system that exhibits spin glass type magnetic behavior with a spin glass freezing temperature of 175K. The photomagnetism of both compounds has been measured at several temperatures below the spin blocking temperature.