A vinyl compound (formula −CH=CH₂) is any organic compound that contains a vinyl group (Preferred IUPAC name ethenyl), which are derivatives of ethene, CH₂=CH₂, with one hydrogen atom replaced with some other group. An industrially important example is vinyl chloride, precursor to PVC, a plastic commonly known as "vinyl".

Vinyl groups are alkene derivatives: Primary alkenes contain vinyl groups. On a carbon skeleton, sp²-hybridized carbons or positions are often called vinylic. Allyls, acrylates and styrenics contain vinyl groups. (A styrenic crosslinker with two vinyl groups is called divinyl benzene).

The etymology of vinyl is the Latin vinum = "wine", because of its relationship with alcohol (in its original sense of ethyl alcohol).

Related to vinyl compounds are vinylidenes. Vinylidene itself, a rare species of theoretical interest, is a modified carbene with the formula CH₂=C:. Vinylidenes describe compounds containing the functional group CX₂=C. For example, 1,1-dichloroethene (CH₂=CCl₂) is called vinylidene chloride.

Richard Quitevis (born October 7, 1969) known by his stage name DJ Qbert or Qbert, is a Filipino-American Turntablist and composer.

Growing up in San Francisco's Excelsior District on Moscow Street, he graduated from Luther Burbank Middle School and in 1987 from Balboa High School. Qbert started playing with records at the age of 15, although he got his first Fisher-Price turntable as a toddler. He was influenced by the street performers and graffiti artists of the local hip hop community in the mid 1980s. It was at Balboa's school cafeteria that he went up against Mix Master Mike. The two are good friends.

Qbert started his musical career in a group called FM20 with Mix Master Mike and DJ Apollo in 1990. In New York when playing a show, Crazy Legs saw them and invited them to join the Rock Steady Crew. They accepted the offer to join the crew. Going by the name Rock Steady DJs they then proceeded to take the 1992 Disco Mix Club World DJ Championships (DMC) world title. Qbert was also one of the founding members of the band Invisibl Skratch Piklz. Although there were other turntablist crews before the Invisibl Skratch Piklz, the Skratch Piklz were the first to apply the band concept to turntablism, layering drums, basslines, and scratch solos on top of each other.

Pete Nash is the creator of the football comic strip Striker, which appears daily in The Sun newspaper. In 2003 Nash, who owns the rights to the strip, parted company with The Sun in order to launch his own comic featuring the character. Despite investment from readers, the comic ceased publication in 2005. Nash has since negotiated a return to The Sun for the strip, however, it ended in September 2009.

DJ Sneak (born Carlos Sosa, 1969) is a Puerto Rican born American house music DJ and producer raised in Chicago, Illinois. He is noted as being one of the second wave of Chicago house producers, (alongside Derrick Carter, Cajmere/Green Velvet, Gemini, and Paul Johnson) as well as a member of the vanguard of late-1990s United States house producers.

In 1983, Sneak moved to the city of from Puerto Rico, where his early musical experiences and influences were rooted in salsa, meringue and Latin orchestras. In Chicago, Sneak found inspiration in underground house music, warehouse parties and "old school" mix tapes from the early pioneers, Farley Jackmaster Funk, Ralphi Rosario, Steve Hurley and local radio station shows played on WBMX.

Sneak earned his nickname rocking graffiti-tags and began working at retail stores as an airbrush artist. Development as a DJ came while working regular mobile DJ jobs and local nightclub. Sneak focused on his music production and started his independent label - Defiant Records.