A new generation of tech entrepreneur was on the rise, creating sites that changed the very landscape of the web. Correspondent David Pogue talked with four young people using the Internet for all it's worth: 21-year-old Mark Zuckerberg, founder of thefacebook.com; Blake Ross, who co-created the web browser Firefox at age 19; Robin Liss, who created camera review websites while in middle school; and Wayne Chang, creator of the i2hub high-speed communications network. Originally broadcast on "CBS Sunday Morning" July 17, 2005.