Evan writes posts about multiple languages, IIRC. I had seen his blog earlier and read a few posts about other languages.
Another blogger with an interesting blog, who writes about multiple languages, is Chris Double. His blog is https://bluishcoder.co.nz (Bluish Coder is an anagram of his name, IIRC). I recently saw a post on his blog called "Introduction to J." The post also has a short list of links for learning J.
> And now, the bad news: it's been a fun ride, but I am planning to retire from Erlang and Chicago Boss. But don't cry for me: I've been having success with my desktop software business (wizardmac.com) and realized that going forward I will no longer have the time to dedicate to both CB and Wizard. (Incidentally I also left grad school a couple months ago to focus on Wizard.) Finished software products require a ton of focus and work, and I just don't have the mental capacity to manage two projects at once. I wish there were more hours in the day!