Where YOCKOW does something:
SiteLanguage
F450日本語Japanese
アヒルぐちパンダ日本語Japanese/English
GitHubEnglish
Instagram日本語Japanese
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