1. dso-util
    A small set of utilities, functions and macros, by David Owen
  2. DTP Prover
    DTP (Don's Theorem Prover) is "a sound and complete inference engine
  3. Duologue
    High-level user interaction library for Common Lisp
  4. Dwight Holman
    Dwight Holman is a Person attending California State University, Chico
  5. dwim.hu
    dwim dot hu is the homepage of four Hungarian lispers who started a lisp company, hosting all their opensource projects
  6. Dynamic ADTs
    Dynamic ADTs are abstract data types with a framework for observation and adaptation
  7. dynamic-classes
    Lets you specify CLOS classes (e.g., as arguments to make-instance) using parameters at run-time, letting you use mixins more conveniently
  8. E-on-CL
    E-on-CL is an implementation of the E programming language in Common Lisp
  9. Eager Future2
    Eager Future2 provides composable concurrency primitives that unify parallel and lazy evaluation, are integrated with CL's condition system, and have automatic resource management
  10. eager-future
    Eager Future has been superseded by Eager Future2