Micelle-templated silica (MTS)-composites with flexible macroscopic shape, monomodal or bimodal (hierarchical) pore structure, and high mechanical stability can be prepared by partial or complete pseudomorphic transformation of porous glasses (PG). The state of research concerning synthesis, transformation mechanism, characterization, and application of MTS/PG-composites is reviewed and the investigation of the transformation products by Xe-129 NMR spectroscopy and the direct synthesis of Al-MCM-41/PG-composites are introduced. Finally, several approaches like a double-templating strategy for pore protection is shown.