Download the SNP annotation files for various platforms (split by enzymes when applicable) as R dumps: [ 10K | 100K (Hind) | 100K (Xba) | 250K (Nsp I) | 250K (Sty I) ]
You can also download those files, for example the 10K annotation file, directly from the R prompt by typing
load(url("http://biostat.jhsph.edu/~iruczins/publications/sm/2007.scharpf.bioinfo/mapping/mapping10k.rda"))
at the R prompt. Replace
10k in the line above by
50kHind,
50kXba,
250kNsp, or
250kSty
for the other files.