Lately we exercised our Lisp skills by writing cl-torrents, an app that searches for torrents on several sources (the Pirate Bay through piratebay.to, Kickass torrents and torrent.cd), and we wrote an extensive tutorial in the making (that was actually our primary goal). It comes as a library to use from the REPL and as a self-contained executable (download and run, nothing more to install). You’ll find the following topics in the tutorial: