Here are a couple that looked worth doing more research on:

OpenCMS
Midgard

As I suspected, others are talking about the concept of a blog as an archive for knowledge, even "memory."  Even, as I had pondered, the idea that someday, our descendants will read the contents of these works that we are writing today.

Against my better judgment, I am subscribing to what appears to be another news bloater.  Haven't I learned this lesson already?

I went exploring for some of the Greek words that comprise the principles of XAG.  Here are the counts:

Exagorazo - 322
Exaggello - 36
Exago - 205
Homotechnos - 22

This means that there is little likelihood that anyone else has written about these words in such a way.  I must write!  I must put into print what God has given me.