221. BSL
     The Boost Software License 1.0 is a simple permissive license only requiring preservation of copyright and license notices for source (and not binary) distribution
222. BST
     BST is a Common Lisp library for working with binary search trees that can contain any kind of values
223. bt-semaphore
     Superseded by equivalent functionality in Bordeaux-Threads
224. bubble-operator-upwards
     bubble-operator-upwards is a function that "bubbles an operator upwards" in a form, demultiplexing all alternative branches by way of cartesian product
225. Buclet
     Buclet provides CFFI bindings to the Bullet physics library
226. build
     Build/make systems
227. buildapp
     Buildapp is an SBCL tool for creating executables
228. Buildnode
     Buildnode is a libary to ease interaction with CXML:DOM XML documents and nodes
229. bundler
     the Bundler is an ASDF-Extension to combine many systems into one automatically
230. burgled-batteries
     burgled-batteries is a Python-Lisp bridge, similar to Python-on-Lisp or Pyffi, aiming for deep integration between Python and Common Lisp

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