ReferenceUSA has created some learning material to help you get the most out of your experience with this database.
Resources for ReferenceUSA Users include several webinars you can register for at your convenience:
ReferenceUSA Search Essentials
Uncovering the Hidden Job Market: Career Search Strategies Using ReferenceUSA
Start, Manage, and Grow Your Business Using ReferenceUSA
ReferenceUSA Consumer and Lifestyle Data
ReferenceUSA Big Data and Mapping
ReferenceUSA Historical Business Data