From Alanna Connors: As I recall, the question of "how do I find out what method is best for a period search for my unevenly sampled data? Discrete Fourier Transform? Lomb-Scargle Periodagram? What else?" was asked by Brad Schaefer. The person next to Brad (don't recall who it was) spoke to what an important general question that was. But I also,later, thought of a slightly better answer for Brad: If you DO have some kind of good parametrized physical model (e.g. light-curve formed by two stars of type X and Y, at such and such inclination, with hot-spot and oddly stretched atmosphere, etc etc) then "forward fitting" to make a good likelihood ratio is ALWAYS going to be the most powerful, most sensitive test. The next most powerful test, I claim, will be the one that best approximates the "forward-fitting" of the physical model! i.e. Lomb-Scargle if physics tells you to expect a roughly sinusoidal light-curve; etc.