Journal of Physics G - Nuclear and Particle Physics Journal from the Institute of Physics (UK)
NN-OnLine - The Nijmegen database of nucleon-nucleon and hyperon-nucleon experimental scattering data, phase shifts, partial wave analyses, and potential models.
Nuclear Theory section of arXiv (lanl) preprint server - About half a dozen new articles in nuclear theory get submitted here every weekday, most of them en route to paper journals. Archives go back to 1992 and can be searched.
Physical Review C - Major Journal of Nuclear Physics. All articles back to volume 1 in 1970 are available for download.
