This book investigates the most reliable and informative online resources available for aviation enthusiasts, professionals, and researchers. John A. Merry, an experienced aviation writer, compiles a curated directory of websites to assist users in navigating the vast amount of aeronautical data available on the internet. The text provides a structured framework for evaluating the credibility and utility of various aviation-related web portals.

Readers frequently note that while the physical book serves as a useful starting point, the inherent volatility of web addresses limits its long-term utility. Experts highlight this as a snapshot of the digital aviation landscape during the author's period of research.