User blog comment:Sixelfor/Special note about the story at the end of some chapters/@comment-16674955-20180226235843

Because Line took over, the scanlating group who translated and "scanlated" these blog posts had to stop doing it. Line Webtoon doesn't translate the blogposts, it's done by fans.

But most of the blog posts are about chapters or SIU's life... those who god real deep about the setting or the worldbuilding are generally incorporated here on this wikia in appropriate sections (see for example: structure of the Tower).

Also there are tweets, take with a pinch of salt as some of these things might have changed in developement since then.

https://reddit.com/r/TowerofGod/comments/77p8v3/translation_of_sius_tweets_20122014/

https://reddit.com/r/TowerofGod/comments/77rcrt/translation_of_sius_tweets_20142015_june/

https://reddit.com/r/TowerofGod/comments/77vtkq/translation_of_sius_tweets_2016_july_current/