Steve Chen and Chad Hurley
AGES: 28, 29
OCCUPATION: Co-founders and CTO and CEO respectively of YouTube
NUMBER OF TIME COVERS: 1
PREVIOUS APPEARANCES ON THE TIME 100: 0
PRO: Run the $1.65 billion online community where users share videos—now serving over 100 million videos per day.
CON: While Chen and Hurley provided the platform, it was user participation that allowed the site to become truly ubiquitous.