1. cl-en
    cl-en provides a common lisp interface to the echonest music analysis web API
  2. cl-environment
    CL-ENVIRONMENT is a small library that tries to canonicalize access to some of the internals of different CL implementations
  3. cl-environments
    Implements the CLTL2 environment access API
  4. cl-eshop
    cl-eshop is an e-shop/ecommerce site written in Common Lisp
  5. cl-etsy
    CL-Etsy a Common Lisp interface for the etsy.com web API, by Ben Hyde
  6. cl-event
    cl-event is a Lisp libevent wrapper
  7. cl-events
    Composable events system for Common Lisp
  8. cl-ewkb
    cl-ewkb is a geospatial library based on cl-wkb, supports PostGIS EWKB format (3d, 4d, embedded SRID extensions)
  9. cl-facebook
    cl-facebook is an interface to the Facebook web API
  10. cl-factoradic
    cl-factoradic is a Mathematics/Combinatorics library that implements calculation and iteration of permutations based on the factoradic numbers system