In synchronizing polars, there is a weekly-scale beat period between the spin and orbital motion, thus the campaigns similar to the "Noah Project" in BY Cam are needed, when a given star is observed during at least a dozen of nights distributed over the beat phases. Results of such recent observational campaigns are discussed. For the classical polars, the magnetic axis of the white dwarf undergoes cyclic variations both in longitude and latitude with a characteristic full amplitude of ~ 30 degrees and time of few years, as one may see e.g. in AM Her and QQ Vul. Such objects have to be studied polarimetrically or at least photometrically few nights per year.