You may have noticed that there's a new "Culture" tab near the top of the screen, below where it says "Sitzman ABC":
If you click on the Culture tab, you'll find Sitzman ABC posts related to "cultural" aspects of language. The topics there include holidays, communication, names, and other things that are difficult to classify. I'll also plan on adding more posts to this section in the near future.
Don't forget, there are also tabs that will take you to pages with lists of Common Errors, False Friends, and "Fun" ("Fun" includes things like songs, videos, and other activities).
So have a look around, and enjoy your weekend!