The RV semiamplitudes of all known sdB binaries with spectroscopic solutions plotted against their orbital periods (Geier et al. 2010c). Binaries which have initially been discovered in photometric surveys due to indicative features in their light curves (eclipses, reflection effects, ellipsoidal variations) are marked with open circles. Binaries discovered by detection of RV variations from time resolved spectroscopy are marked with open diamonds. The dashed, dotted and solid lines mark the regions to the right where the minimum companion masses derived from the binary mass function (assuming 0.47   M_⊙ for the sdBs) exceed 0.45   M_⊙, 1.00   M_⊙ and 1.40   M_⊙. The seven binaries from the MUCHFUSS project are marked with filled diamonds.