Keeps track of those important phone numbers and addresses.  Author
suggests $30 donation.  

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  315     974  32.3% -lh5- fabc May  2  1987 BlackBook.info
[generic]                   35      35 100.0% -lh0- f6af May  2  1987 BlackBook/.info
[generic]                  244     479  50.9% -lh5- 2831 May  2  1987 BlackBook/bbmake
[generic]                 4160   10880  38.2% -lh5- 155f May  2  1987 BlackBook/bfile.lib
[generic]                 5930   21233  27.9% -lh5- 3b07 May  2  1987 BlackBook/blkbook.c
[generic]                  196    1548  12.7% -lh5- 08bf May  2  1987 BlackBook/BLKBOOK.DAT
[generic]                 1759    4797  36.7% -lh5- 440d May  2  1987 BlackBook/blkbook.doc
[generic]                  440    2566  17.1% -lh5- ccaf May  2  1987 BlackBook/Blkbook.doc.info
[generic]                   74    1928   3.8% -lh5- 3f7d May  2  1987 BlackBook/BLKBOOK.IDX
[generic]                15265   36696  41.6% -lh5- 7a15 May  2  1987 BlackBook/by Lcc
[generic]                  316     610  51.8% -lh5- a30a May  2  1987 BlackBook/by Lcc.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        11 files   28734   81746  35.2%            May  2  1987