MXToolBox is a DNS and email delivery tool for IT professionals and network administrators.

Server Fault is a Q&A platform for system and network administrators.

Network Tools by YouGetSignal.com is a suite of network tools for network administrators and is used by IT professionals.

IT-Administrator is a magazine for IT professionals, providing news, articles, and resources on system and network administration.

ClarkConnect is a Linux-based server management and cybersecurity tool for IT professionals and businesses.

NetAdminTools is a resource providing reviews and lists of free and paid network administration tools for monitoring, management, and maintenance.

Tom Limoncelli's blog focusing on system administration, DevOps, IT operations, and personal life intersection, promoting his books.

Network administration blog and training platform

BASNET is the best internet service provider for academic institutions and is used by educational and research organizations in Belarus.