He now works at Google but didn't at the time he wrote this particular blog.

Googlepages was Google Page Creator - it's kind of like having an x.blogger.com site show as blogger.com or x.geocities.com show as geocities.com.

I almost always hover over links on HN to check the URL. (google.com) is often code.google.com, and I knew without knowing that googlepages.com had to be something like whatever.blogger.com or some such like nopassrecover said.

This is a standard problem with attribution of Googlepages content here on HN. By far the least informative URL snippets after titles here are those that say "google.com" or "googlepages.com"--who knows who really wrote them?