This is a topic near to my heart and part of my chosen work. Given how many people misuse the terms in this important field, I wrote a document for the IETF (the folks who invented and still develop the Internet) called "Terminology Used in Internationalization in the IETF". I hope A.Word.A.Day readers find it useful!

Interesting paper, 'tho a bit over my simple head. Thanks for bringing it to the Board's attention.