Where YOCKOW does something:
SiteLanguage
F450: YOCKOWの独壇場Ⅹ 〜THE NEXT OF “ひあるび”〜日本語Japanese
あひる口パンダ日本語Japanese/English
GitHubEnglish
mixi日本語Japanese
Qiita日本語Japanese
Swift JIRAEnglish
Twitterほぼ日本語Almost in Japanese
Wikipedia日本語Japanese
YouTube日本語Japanese