Today I made another one of my Hatena-related projects publicly accessible. Believe me, I have a lot more of these things.
Essentially, it should automatically archive articles from all of Hatena's Zendesk help centers.
It's in a mostly finished state, but I might add a few more things to it for completeness sake, like downloading of article attachments (which I was already doing separately)
I don't think it will be very useful to anyone when you can just visit the help centers yourself. I'm more interested in knowing when article content changes. Maybe it will be useful to other people who want to archive a Zendesk Help Center.
See also, an archive of Android apps created by Hatena: