Both Ceroc and LeRoc originally evolved together in London during the Jive revival in the early 1980s, with dancers often being a member of both clubs. However, when James Cronin chose to trademark the word "Ceroc", and to run the Ceroc club as a franchised business, the members of the LeRoc club decided not to run theirs for the potential income, preferring to concentrate on perfecting the dance. This means that today, many unrelated Modern Jive organisations are free to use the term "LeRoc" in their names as it remains a generic term. 
"The LeRoc Modern Jive Federation" is a non-profit federation of independent dance teachers that was set up in 1991, but it is not mandatory to join. It offers advantages (such as membership of the United Kingdom Alliance of Professional Teachers of Dancing and Kindred Arts (UKA)) to its members.
Despite the supposed origins in France, there is currently very little Modern Jive danced in France.
- The LeRoc Modern Jive Federation
- AfterFive "A Dancer's Guide", a free downloadable guide to dancing Modern Jive (including Ceroc and LeRoc), plus maps, links, etc.
- Modern Jive Resource Centre
- Modern Jive classes and events for the UK
- 'Lynda's List' of current dance events
- Jiveoholics Anonymous - directory of dance moves