What organizations exist for puzzle lovers?

  American Cryptogram Association
  Publication:
    The Cryptogram
      Bimonthly
  Dues:
    See below
  Treasurer:
    ACA Treasurer
    18789 West Hickory St.
    Mundelein, IL 60060
  Comments:
    Devoted to cryptography.  Every issue of the journal contains
    several thoughtful articles and a large number of puzzles, including
    aristocrats, patristocrats, xenocrypts, cipher exchanges and
    cryptarithms.  Members have the option of picking a "nom" (nom de
    plume), e.g. the president is Gizmo.  As it is a specialized
    organization, you should request a sample issue first (I don't
    know the procedure for this, but $1 and a SASE should do it).

  The National Puzzlers' League
  Publication:
    The Enigma
      Monthly
  Dues:
    See below
  Editor:
    Judith E. Bagai
    Box 82289
    Portland, OR 97282
  Comments:
    Simply the best organization devoted to word puzzles.  The _Enigma_
    contains over 80 word puzzles per issue, ranging in difficulty from
    easy to extremely difficult and in type from the familiar anagrams
    and riddles to such obscure forms as spoonergrams and acrostical
    enigmas.  Each issue also includes a member-written cryptic.  Members
    get to pick a "nom" (nom de plume), e.g. I'm Cubist and Chris Cole
    is Canon.  The NPL is a somewhat specialized organization, so you
    should send a SASE with a request for a mini-sample to the editor
    to see if it's for you.

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