2071. Okra
      Okra provides CFFI bindings to the Ogre 3D graphics engine
2072. Ola Rinta-Koski
      Ola Rinta-Koski is probably a Person
2073. Ole Arndt
      A Person
2074. Oliver Markovic
      Ordinary Person
2075. OMax
      OMax is a software environment which learns in real-time typical features of a musician's style and plays along with him interactively, giving the flavor of a machine co-improvisation
2076. OMGlib
      A Common Lisp library to build fully dynamic web interfaces
2077. On Lisp
      by Paul Graham
2078. one
      An input processing framework
2079. Online Tutorial
      Online Tutorials for programming Common Lisp or with Common Lisp
2080. OntoLisp
      OntoLisp is a Common Lisp Framework for the Semantic Web, RDF and OWL syntax support

CLiki the common lisp wiki