1. OMGlib
    A Common Lisp library to build fully dynamic web interfaces
  2. On Lisp
    by Paul Graham
  3. one
    An input processing framework
  4. Online Tutorial
    Online Tutorials for programming Common Lisp or with Common Lisp
  5. OntoLisp
    OntoLisp is a Common Lisp Framework for the Semantic Web, RDF and OWL syntax support
  6. Open Agent Engine
    Open Agent Engine is an object oriented graphics framework based on classes representing OpenGL 2.0 windows (opaque and transparent), and OpenGL views with methods to handle rendering, animation, mouse input, keyboard events, gamePad input, texture management, and shader manipulation
  7. OpenGL
    Interfaces and implementations of the OpenGL 3d graphics library
  8. opengl-extensions
    Extends cl-sdl to add bindings to opengl versions 1.3-2.0
  9. opengl-text
    opengl-text is a library for loading and displaying TrueType fonts as texture maps in OpenGL
  10. OpenMCL
    OpenMCL is called Clozure Common Lisp (CCL) now