The Systems Engineering Body of Knowledge (SEBoK) just reached 5 million pageviews since its first appearance in September 2012. SEBoK topics range from systems engineering fundamentals to real-world applications. The SEBoK provides a valuable resource free of charge to systems engineering professionals, educators, students, and anyone who wants to learn more about the field. Experienced systems engineers contribute state-of-the-practice information to the SEBoK to ensure it remains relevant, with updates at least twice a year. Check out the latest version of the SEBoK at www.sebokwiki.org and help us get started on the next 5 million!