A couple of these posts discussed multiple positions -- Nakamura's 1.g4/b4 and Nakamura's 1.h4/a4 -- and I added a database entry for each position discussed. One of these positions was already in the database -- SP931 BRKRNQNB -- so that database entry now points to both posts where it was discussed. Ditto for SP190 - NRNKRBBQ.
As long as I was doing blog maintenance, I decided to restructure parts of Chess960 1-2-3 : Index to Blog Posts. I could have also added all blog posts since A New Page, a TOC, and a Logo (June 2014), but I'll leave that for another time.