At this moment, these are the most downloaded conference proceedings from the American Institute of Physics:

If you’re too lazy to click and embiggen, the second item is S. Rao et al., “Topic 1: Attracting Girls Into Physics” AIP Conf. Proc. 628, 9 (2002).

The third item is Chris Walter’s “Why understanding neutrino interactions is important for oscillation physics” (on the arXiv here). I worked in Chris Walter’s research group a couple summers ago; he’s a cool guy.