- Program QA: https://programqa.com/
- OSCHINA: https://www.oschina.net/
- GameRes: https://www.gameres.com/
- CSDN(Chinese Software Developer Network): https://www.csdn.net/
- KLDP (Korean Linux Documentation Project): https://kldp.org/
- IAMROOT(Linux Kernel, GCC, Xen): http://www.iamroot.org/
- PHP SCHOOL: https://www.phpschool.com/
- 안드로이드펍: https://www.androidpub.com/
- OKKY (오키): https://okky.kr/
- BOJ (BaekJoon Online Judge) slack: https://acmicpc.slack.com/
- 월요일의 도쿄: https://mondaytokyo.com/
- Qiita: https://qiita.com/
- @IT: https://www.atmarkit.co.jp/