Small-angle neutron scattering has been used to investigate shear-induced structures in concentrated micellar phases. In the lamellar phase of the non-ionic surfactant hexaethylene glycol monohexadecyl ether, a novel biaxial orientation of the lamellae with shear is observed, whereas for a cationic-non-ionic mixture, the shear-induced formation of multi-lamellar vesicles is observed.