  We analyze a large number of citizen science data and identify eight Hot
Jupiter systems that show evidence for deviations from a constant orbital
period: HAT-P-19 b, HAT-P-32 b, TrES-1 b, TrES-2 b, TrES-5 b, WASP-4 b, WASP-10
b, and WASP-12 b. The latter system is already well known to exhibit strong
evidence for tidal orbital decay and serves as an important control for this
study. Several other systems we identify have disputed period drifts in the
literature, allowing the results here to serve as an independent analysis. The
citizen science data are from the Exoplanet Transit Database (ETD), which is a
global project established in 2008 by the Variable Star and Exoplanet Section
of the Czech Astronomical Society. With over 400 planets and 12,000 contributed
observations spanning 15 years, the ETD is brimming with potential for studying
the long-term orbital evolution of close-in Hot Jupiters. We use our results to
discuss prioritization of targets for follow up investigations, which will be
necessary to confirm the period drifts and their causes.

Earth and Planetary Astrophysics