Useful Commands: OS, Networking, Hardware, Wi-Fi
Troubleshooting: Kali-Linux Installation, Repository, Wi-Fi Cards (Official Docs)
Hardware: Recommended 802.11 Wireless Cards
Search: https://www.kali.org/search/
Documentation: http://docs.kali.org/ (Offline PDF version)
Bugs Reporting & Tool Requests: https://bugs.kali.org/
Kali Tool List, Versions & Man Pages: http://tools.kali.org/