  We review recent progress in embedding the supersymmetric standard model into
string theory. We discuss how, with the incorporation of certain aspects of
grand unification, a search strategy can be developed that allows to
efficiently find rather large numbers of promising string vacua. Global
string-derived models with the following features are discussed: (i) exact MSSM
spectrum below the unification scale; (ii) R parity; (iii) hierarchical Yukawa
couplings with non-trivial mixing; (iv) solution to the mu problem; (v) see-saw
suppressed neutrino masses.
