1911. md5
      md5 is a cryptographic Message-Digest algorithm from RSA Data Security, Inc
1912. Measures
      The Measures Package provides dimensioned numbers (i.e
1913. media-types
      Query and compare media types
1914. Medley
      Medley was the last release of the Xerox Lisp environment, before the whole environment was renamed Medley
1915. mel-base
      mel-base is a library for handling email with support for Maildir, POP3, IMAP and SMTP folders
1916. memento-mori
      memento-mori is a library for writing robust, actor-based systems
1917. memeozi
      (memeozi) is a library for memoization of functions
1918. memoization
      Memoization is a package that extends the traditional memoization macros to not only easily define such functions, but also to save the cache to disk
1919. memoize
      Memoize is a small library for performing memoization
1920. memoize-form
      A simpler need than memoizing the results of a function with arguments is that of memoizing the results of a form

CLiki the common lisp wiki