  We report the discovery of eclipses and the first orbital period measurements
for four cataclysmic variables, plus the first orbital period measurements for
one known eclipsing and two magnetic systems. SDSS J093537.46+161950.8 exhibits
1-mag deep eclipses with a period of 92.245 min. SDSS J105754.25+275947.5 has
short and deep eclipses and an orbital period of 90.44 min. Its light curve has
no trace of a bright spot and its spectrum is dominated by the white dwarf
component, suggesting a low mass accretion rate and a very low-mass and cool
secondary star. CSS J132536+210037 shows 1-mag deep eclipses each separated by
89.821 min. SDSS J075653.11+085831.8 shows 2-mag deep eclipses on a period of
197.154 min. CSS J112634-100210 is an eclipsing dwarf nova identified in the
Catalina Real Time Transit Survey, for which we measure a period of 111.523
min. SDSS J092122.84+203857.1 is a magnetic system with an orbital period of
84.240 min; its light curve is a textbook example of cyclotron beaming. A
period of 158.72 min is found for the faint magnetic system SDSS
J132411.57+032050.4, whose orbital light variations are reminiscent of AM Her.
Improved orbital period measurements are also given for three known SDSS
cataclysmic variables. We investigate the orbital period distribution and
fraction of eclipsing systems within the SDSS sample and for all cataclysmic
variables with a known orbital period, with the finding that the fraction of
known CVs which are eclipsing is not strongly dependent on the orbital period.
