This document summarizes a presentation about Shout-it-Now (S-N), an organization that uses mobile labs and technology to educate and test people for HIV in South Africa. It discusses: 1) S-N's background, approach, key results including testing over 413,000 people and linking over 90% of HIV+ clients to clinics. 2) The health challenges in South Africa, including high HIV prevalence rates and many people never being tested. 3) How S-N uses mobile labs, engaging videos, and biometrics to register and test people in schools and communities. 4) How S-N started using the simulation software SIMUL8 to model and improve their business