I like the plain HTML in early-90s styling - very simple and functional. That is a lot of different architectures... but x86 is not included.

Also noticed that the complete package is 24MB+ because it contains not only the source but the binaries for all the assemblers compiled with all the compilers they used: cygwin, djgpp, linux, symantec, turboc30, vc6, vs05, vs10, vs13, watcom. I'm not sure what the point of doing this is (since the platforms are DOS, Linux, and Windows), besides as a comparison: cygwin appears to make the smallest executables, while vs13's is over 2x bigger.