Thanks for this very helpful guide. Would you consider including a brief pointer to Roswell?

Given that it's 2017, some may consider that downloading tar.gz files, configure and make are less than optimal ways to try out a new language. Of course, it's quite helpful at some later point to understand how to build various implementations from source code, but it may not be what newcomers are expecting.

Roswell is easily installed on all platforms, including Windows. (This guide currently asks for help with Windows instructions, so Roswell may help fill this gap.)

It allows users to install and switch to various implementations as easily as ros install sbcl, ros install ccl, then ros use sbcl etc. This is also quite helpful for newcomers who may want to try various implementations. (Though I imagine most newcomers would rather have a single recommended implementation.)

Hope this helps, and thanks again.