  In this paper we present many new families of identities for multiple
harmonic sums using binomial coefficients. Some of these generalize a few
recent results of Hessami Pilehrood et al. As applications we prove several
conjectures involving multiple zeta star values (MZSV): the Two-one formula
conjectured by Ohno and Zudilin, and a few conjectures of Imatomi et al.
involving 2-3-2-1 type MZSV, where 2 means some finite string of 2's
