A mechanism leading, to the coexistence of weak ferromagnetism and spin glass behavior in the weak organic ferromagnet TDAE-C 6 0 is proposed. In view of the non-metallic character of TDAE-C 6 0 , the C 6 0 - -C 6 0 - intra-chain coupling along the c-axis as well as the inter-chain C 6 0 - -C 6 0 - are assumed to be of antiferromagnetic nature. If the spin density on the TDAE + ion is inhomogeneously distributed the TDAE + mediated super-exchange leads to a ferromagnetic coupling between C 6 0 - ions on different chains. This leads to a Dyaloshinsky-Moriya type coupling responsible for the spin-canting and a non-zero spontaneous magnetization. Other models like three dimensional ferromagnetic orbital ordering of Jahn-Teller distorted C 6 0 molecules are discussed as well.