  Transiting planets manifest themselves by a periodic dimming of their host
star by a fixed amount. On the other hand, light curves of transiting
circumbinary (CB) planets are expected to be neither periodic nor to have a
single depth while in transit. These propertied make the popular transit
finding algorithm BLS almost ineffective so a modified version of BLS for the
identification of CB planets was developed - CB-BLS. We show that using this
algorithm it is possible to find CB planets in the residuals of light curves of
eclipsing binaries that have noise levels of 1% and more - quality that is
routinely achieved by current ground-based transit surveys. Previous searches
for CB planets using variation of eclipse times minima of CM Dra and elsewhere
are more closely related to radial velocity than to transit searches and so are
quite distinct from CB-BLS. Detecting CB planets is expected to have
significant impact on our understanding of exoplanets in general, and exoplanet
formation in particular. Using CB-BLS will allow to easily harness the massive
ground- and space- based photometric surveys in operation to look for these
hard-to-find objects.
