1. 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
  2. E-on-CL
    E-on-CL is an implementation of the E programming language in Common Lisp
  3. 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
  4. eager-future
    Eager Future has been superseded by Eager Future2
  5. easyweb
    easyweb is a Django-like web framework for Common Lisp
  6. eazy-gnuplot
    Lispy Gnuplot library
  7. ebnf-parser
    An EBNF (ISO/IEC 14977) parser generator
  8. Ecclesia
    Utilities for parsing Lisp code, e.g
  9. ECL
    Embeddable Common Lisp, a member of the KCL Family, is a Common Lisp implementation initially developed by Giuseppe Attardi, maintained for many years by Juan Jose Garcia-Ripoll and currently maintained by Daniel KochmaƄski
  10. ecl-readline
    A simple binding to GNU Readline console library for ECL (Embeddable Common Lisp) providing command line editing, symbol completion, history file and history size configuration