1. dso-binary-class
    dso-binary-class allows you to declare classes with a specific binary disk layout, and then read and write instances easily
  2. dso-csv
    A very simple parser for the CSV (comma-separated values) file format
  3. dso-lex
    Allows lexers to be defined using regular expressions a la cl-ppcre
  4. dso-parse
    This is a simple PEG (parsing-expression grammar) parser-generator, aimed mostly at parsing text but capable of parsing other structures as well
  5. dso-util
    A small set of utilities, functions and macros, by David Owen
  6. DTP Prover
    DTP (Don's Theorem Prover) is "a sound and complete inference engine
  7. Duologue
    High-level user interaction library for Common Lisp
  8. Dwight Holman
    Dwight Holman is a Person attending California State University, Chico
  9. dwim.hu
    dwim dot hu is the homepage of four Hungarian lispers who started a lisp company, hosting all their opensource projects
  10. Dynamic ADTs
    Dynamic ADTs are abstract data types with a framework for observation and adaptation