A dozen transiting circumbinary planets have been found, but only with rudimentary by-eye techniques. This limits the discoveries to gas giants, which are only the tip of the iceberg. I will show results of our latest work to develop and implement new transit detection tools specific to circumbinary planets. We are finally sensitive to circumbinary Earths and super-Earths, and determine that they are actually less abundant than around single stars. I will discuss the implications for this, and also our complementary search using radial velocities.