A Guided Tour of Mathematical Physics - By Roel Snieder. Topics are presented via hundreds of detailed problems. Text available for download in compressed PostScript. samizdat.mines.edu/snieder
Greenwood Research Books and Software - On-line catalog of books and software in mathematical physics, astrophysics, field physics, and engineering physics, including free astrophysics software downloads. grnwd.tripod.com
Local Quantum Physics - Preprint archive with papers in PostScript format. www.lqp.uni-goettingen.de/lqp/papers
Mathematical Physics Archive - An archive of papers published in the field of mathematical physics. rene.ma.utexas.edu/mp_arc
Which Mathematical Structure is Isomorphic to our Universe? - Max Tegmark. Some physical consequences of ``the ultimate ensemble theory'', where not only worlds corresponding to say different sets of initial data or different physical constants are considered equally real, but also worlds ruled by altogether different equations. HTML, PS and PDF. www.hep.upenn.edu/~max/toe.html
