1. LOOM
    Lisp: Object-Oriented and Modular
  2. Lou Glassy
    is a Person, although not a superintelligent shade of blue
  3. lparallel
    lparallel is a new concurrency library
  4. LQN
    Lisp Query Notation is for working with text files
  5. lQuery
    lQuery is a DOM manipulation library inspired by and based on the jQuery syntax and functions
  6. LSE
    LSE, Langage Symbolique d'Enseigment programming language implementation
  7. LSP
    LSP (Lisp Server Pages) is an HTML template library
  8. LSW2
    OWL and Semantic Web toolkit for Lisp
  9. ltd
    ltd is a Common Lisp to Dylan translator
  10. ltk
    LTK is a set of CL bindings for the Tk GUI library, which provides a complete CLOS binding to the Tk widget set