Ted Neward is taking a look at Lisp. I can only recommend to do so if you haven’t been exposed to Lisp or Scheme before — while it’s highly unlikely you’ll ever use it in practice, unfortunately, it’s highly educating; and there’s very few IDEs that are as great for learning a language as DrScheme.
This is a single archived entry from Stefan Tilkov’s blog. For more up-to-date content, check out my author page at INNOQ, which has more information about me and also contains a list of published talks, podcasts, and articles. Or you can check out the full archive.