Protecting LiteBlue USPS News LinkBlue Lite is a user-friendly online platform provided by United States Postal Service. It is developed for easy access to worker advantages, timetables, payroll, and other. Using Liteblue, USPS employees can stay informed about their job details, connect with colleagues, and manage various HR tasks. Liteblue USPS aims to optimize USPS operations and establish a more effective work environment.