Answer:
   
   There are a number of places that you can look:
    1. Consult the "[5]Online Mendelian Inheritance in Man" database at
       The Johns Hopkins University
       (<http://gdbwww.gdb.org/omim/docs/omimtop.html>), or the [6]GDB
       Genome Data Base (<http://gdbwww.gdb.org/>).
    2. Consult the National Foundation for Jewish Genetic Diseases:
       National Foundation for Jewish Genetic Diseases, Inc.
       250 Park Avenue
       Suite 1000
       New York, New York 10177
       (212) 371-1031
    3. Check out the [7]Jewish Genetic Disease Program of the Saint
       Barnabas Health Care System ([8]http://www.sbhcs.com/genetics).
       This is a grant-funded program with the goal of educating people
       about disorders more common in the Jewish population. The site has
       information on common Jewish Genetic Diseases, and links to
       information on the following individual disorders: Bloom Syndrome,
       Canavan Disease, Cystic Fibrosis, Fanconi Anemia (Type C),
       Familial Dysautonomia, Gaucher Disease, Niemann-Pick Disease (Type
       A), Tay-Sachs Disease, and Mucolipidosis IV. You may contact them
       at [9]sbcgenetics@sbhcs.com or call (973) 322-7020 for more
       information.
    4. If you are dealing with a Tay Sachs related disease:
       National Tay Sachs and Allied Diseases Association
       2001 Beacon Street
       Brookline, MA 02146
       (617) 277-4463
    5. If you are dealing with Mucolipidosis Type IV (ML4), an inherited
       metabolic storage disease traced back to Lithuania and Poland:
       ML4 Foundation
       719 East 17th Street
       Brooklyn , NY 11230
       [10]ML4 Home Page: www.ml4.org
    6. If you are dealing with Fanconi Anemia, an inherited
       chromosomal/haematological disorder:
       Fanconi Anemia Research Fund, Inc.
       1902 Jefferson Street, Suite 2
       Eugene, OR 97405
       Phone:(541) 687-4658
       E-mail: [11]info@fanconi.org
       Home Page: [12]www.fanconi.org
    7. Check out some of the medical links at [13]Hebrew University in
       Jerusalem (<http://www1.huji.ac.il/md/med_link.html>)