SF1 may refer to:

Ken Block (born November 21, 1967, in Long Beach, California) is a professional rally driver with the Monster World Rally Team. Block is also one of the co-founders and recently appointed Chief Brand Officer of DC Shoes. Block has also competed in many action sports events including skateboarding, snowboarding, and motocross.

In 2005, Ken Block began his national rallying career with the Vermont SportsCar team. Vermont SportsCar prepared a 2005 Subaru WRX STi for Block to compete. His first event of the rallying season was Sno*Drift, where he ended up finishing seventh overall and fifth in the Group N class. During the 2005 season, Block had five top five finishes and placed third overall in the Group N class and fourth overall in the Rally America National Championship. At the end of his first rallying year, Ken Block had won the Rally America Rookie of the Year award.

In 2006, Ken Block along with his DC rally teammate Travis Pastrana signed a new sponsorship deal with Subaru. Through this deal with Subaru, the teammates became known as "Subaru Rally Team USA." With the new rally season, Block also got a brand new Vermont SportsCar prepped 2006 Subaru WRX STi. He competed in the first ever X Games rally event at X Games XII. In the competition, Block ended up finishing third to take the bronze. He went on to compete in the 2006 Rally America National Championship, where he finished second overall.

Carl Malamud (born 1959) is a technologist, author, and public domain advocate, currently known for his foundation public.resource.org. He was the founder of the Internet Multicasting Service. During his time with this group, he was responsible for creating the first Internet radio station, for putting the U.S. Securities and Exchange Commission's EDGAR database on-line, and for creating the Internet 1996 World Exposition.

Malamud is the author of eight books, including Exploring the Internet and A World's Fair. He was a visiting professor at the MIT Media Laboratory and was the former chairman of the Internet Software Consortium. He also was the co-founder of Invisible Worlds, was a fellow at the Center for American Progress, and was a board member of the non-profit Mozilla Foundation.

Most recently, Malamud has set up the nonprofit public.resource.org, headquartered in Sebastopol, California, to work for the publication of public domain information from local, state, and federal government agencies. Among his achievements have been digitizing 588 government films for the Internet Archive and YouTube, publishing a 5 million page crawl of the Government Printing Office, and persuading the state of Oregon to not assert copyright over its legislative statutes. He has also been active in challenging the state of California's copyright claims on state laws by publishing copies of the criminal, building, and plumbing codes online.

Aaron Swartz (born November 8, 1986) is an American programmer, writer, political organizer and Internet activist. He is best known in programming circles for co-authoring the RSS 1.0 specification. He received mainstream media attention after his federal indictment and arrest on 19 July 2011, for allegedly harvesting academic journal articles from JSTOR.

Swartz is the co-founder of Demand Progress and the Progressive Change Campaign Committee. He currently lives in Brooklyn, New York.

Swartz was active in discussions of Internet standards from an early age, and co-authored the specification for RSS by the time he was 14.^{[citation needed]} Since then he has been a member of the W3C's RDF Core Working Group, co-designed the formatting language Markdown with John Gruber, and worked on many other projects.

Swartz attended Stanford University for a year, leaving to start the software company Infogami, a startup that was funded by Y Combinator's first Summer Founders Program. Infogami was built around a wiki backend, a subject of interest for Swartz since his early effort to develop theinfo, a wiki-based encyclopedia, in 2000.