A
really long post. Read at your peril.
Here are snippets from various sites on the internet defining forms of Jive. Make of it what you will. I've ignored French/Modern/Ceroc/Leroc.
None of this tells me where Rock nRoll Jive falls, though
Jive
http://www.sit.wisc.edu/~acjeong/
Jive, brought over from America has been initially developed from a dance called "Jitterburg" by eliminating all its acrobatic elements and polishing the technique. The first description of Jive made by London dance teacher Victor Silvester was published in Europe in 1944. The Boogie, Rock & Roll and the American Swing also influenced this dance.
http://www.geocities.com/jaichavan/jive.htm
Jive is a very fast, energy-consuming dance. It is the last dance danced at the competitions, and dancers have to show that having dance four dances they are not tired yet and still ready to go hard at it.
The music has the time signature of 4/4 and the beats may be accented on ‘1’ and ‘3’, or ‘2’ and ‘4’, or all the four beats. The ideal tempo is 40 to 46 bars per minute.
The two rhythms that form the basis of jive are:
a) 1, 2, 3, &, 4
b) 1, 2, 3, &, 4, 3, &, 4
1, 2 is the Rock Step and 3, &, 4 the Jive Chasse. The group or three steps, the Chasse, can be taken forward, backward, sideways (to the left or right), and turning (to the left or right). The feet are never together on the count ‘&’, although when practising one should endeavour to keep them as close to each other as possible. The step on the count ‘3’ is large as compared to the one for the count ‘4’. The movement of the feet should is small.
All the steps are on the ball of the foot and the heel is always just of the floor. The weight of the body is kept slightly forward with the knees flexed naturally. The hip is relaxed to allow it to swing naturally towards the foot taking the body weight.
Thus, every step is on the ball of the foot with the knee flexed. As the weight transfers on the foot the heel lowers (however, it does not rest on the floor), the knee straightens and the hips move softly in the direction of the stepping foot. At the same time, the heel of the opposite foot rises further from the floor. This movement is less pronounced on the counts ‘3’ and even lesser on the count ‘&’.
http://www.swingdanceuk.com/lindy.htm
Swing (the big band sound of the 30s/40s) was the music to which Lindy Hop was originally danced, but today in America the term is used more loosely, with the same meaning that Jive has in Britain - as a general term for the many different varities of swing dance, whether danced to Swing, Jazz or Rock'n'Roll. Jive is also commonly associated with Ballroom Jive, a very stylized dance based on the six-beat count of Lindy Hop.
Rock n Roll
http://www.anidance.de/en/he5f.htm
In dancing schools, Rock'n'Roll was disapproved of for a long time. Rock'n'Roll was danced with devotion in discotheques and dusky bars...In the beginning of the seventies, Rock'n'Roll had a comeback - in 1975 the German Rock'n'Roll federation was founded, turning the dance in a well-ordered way. The jump step, which is compulsory at dancing competitions since then, altered Rock'n'Roll from a life style to a type of sport. But the fascination of the music remained, even when new songs in 4/4-time replaced the songs of Bill Haley or Chuck Berry.
http://www.howtojive.com/intro-rocknroll.htm
When Bill Haley had his surprise record hit with 'Rock Around The Clock', Hollywood cashed in with an exploitation film of the same name in 1956. When asked in the film, one of the dancers says they are dancing the "Rock and Roll" (when in fact it was nothing but good old Jitterbug that some of the key dancers had originally learned as the Lindy Hop). Professional dance studios, including Arthur Murray, jumped on the bandwagon and started teaching the same dance as 'Rock'n'Roll' in order to cash in on the new interest aroused by the film. The East Coast dance establishment refused, however, to call the dance anything other than the original Jitterbug / Lindy Hop names and eventually the West Coast gave in and abandoned its use. Once again, the Europeans were left with the term "Rock 'n' Roll" after the Americans stopped using it, so that 50's Jitterbug is known interchangeably in Europe as "Jive" or "Rock'n'Roll", whereas in America a compromise definition evolved which described all the Rock music from the 1960's onwards as "Rock 'n' Roll" as in the Stones "It's Only Rock'n' Roll But I Like it!"
http://www.swingdanceuk.com/lindy.htm
When Bill Haley's film Rock Around the Clock came out in 1956, the kids were dancing Rock'n'Roll. The moves were the same eight-beat Lindy Turns, six-beat basics and twisting steps that the Jitterbugs had done a few years earlier. But bands and dance floors were becoming smaller, the style of music and even the dancers' clothes changed, so, the dance followed: it became simplified, less structured, but just as exciting. And its name was Rock'n'Roll.
Latin Jive
http://www.anidance.de/en/he2e.htm
In the slang of Africans the term "Jive" (as Jazz or Funk) means sexual emotions or ecstasy. As a successor of Jitterbug and Boogie-Woogie, Jive was brought to Europe by American soldiers about 1940. Jive evolved in Great Britain and was finally integrated into the Latin dance competition program. Jive music shows its African origin with its off-beat-accentuation at beat 2 and 4. Jive expresses the robust joys of life. It has been the 'rave' dance of the pre-Beat-generation and has been the origin of acrobatic athletic Rock'n'Roll.
Today Jive is the internationally accepted word used to describe a dance with multiple predecessors of Afro-American origin. Lindy Hop, Blues and Swing are members of this family from the beginning of the thirties, Boogie, Jitterbug and Bebop in the forties, followed by Rock'n'Roll in the fifties. As a characteristic element for all these dancing forms, the stimulating music has fascinated dancers of all ages with its rhythmic accentuation.
About 1940 American soldiers brought these USA-based dances to Europe. They became popular in a short time because of the open motion style together with acrobatic jumps. Boogie was the dominating music after the war, but it often was refused as an ordinary dance. Therefore a moderate form had to be found in order to make this dancing style socially acceptable. British dancing instructors developed the elegant and even vivid Jive with a slower music. In 1968 Jive was accepted in fifth place of the Latin competition dances.
Basic Movement
Change of Places
Flirt
American Spin
Rolling Off the Arm
Toe Heel Swivel
http://www.ballroomdancers.com/Dances/syllabus.asp?Dance=JIV
This site has these moves under Latin Jive
1. Jive Basic In Place
2. Fallaway Rock
3. Fallaway Throwaway
4. Link
5. Change of Places R to L
6. Change of Places L to R
7. Change of Hands Behind Back
8. Hip Bump (Left Shoulder Shove)
Ballroom Jive
http://www.howtojive.com/intro-ballroom-jive.htm
Worried by the avalanche of new ballroom dances during the late 1950's, the people who run the British Ballroom Competitions decided to analyse and produce syllabuses for some of the most currently popular dances around in order to attract new young dancers to the competition scene. "Ballroom Jive" is the UK name for the specific competition style of Jitterbug developed by the dance-teaching establishment. Characterised by a 'chassis' from side to side and a back replace, this style accentuates the pumping action of the knees, as dancers shift their weight in the chassis. Included as the "American" part of the "Latin & American Dance Categories", it is widely danced today. Simplified versions are taught all over as basic Lindy Hop and Jitterbug, (which it isn't), or as East Coast Swing.
http://www.swingdanceuk.com/lindy.htm
Swing (the big band sound of the 30s/40s) was the music to which Lindy Hop was originally danced, but today in America the term is used more loosely, with the same meaning that Jive has in Britain - as a general term for the many different varities of swing dance, whether danced to Swing, Jazz or Rock'n'Roll. Jive is also commonly associated with Ballroom Jive, a very stylized dance based on the six-beat count of Lindy Hop.
http://www.afterfive.co.uk/guide/latest/html/section20.html
History And Origins
Jive is the ballroom version of the Jitterbug (ECS), developed in Britain in the 1960's.
Basic Footwork And Variations
Ballroom Jive is a partnered dance, danced in both open and closed danceholds. Jive is danced to 4/4 music, with a (competitive) tempo of 44 bars per minute [Latin American Jive].
Footwork is normally based on the six beat basic: the leader's steps are backwards (left), rock (right), chassé (left-right-left), chassé (right-left-right), but can be varied: backwards (left), rock (right), step (left), step (right), or backwards (left), rock (right), step (left), tap (left), step (right), tap(right), or backwards (left), rock (right), tap (left), step (left), tap(right), step (right) -- the follower mirrors.
More complex footwork can also be seen, particularly in competitive ballroom dancing: kick (left), ball (left), change (right), kick (left), step (left), kick (right), step (right).
From the relationship between the dance steps and the musical structure, we can see that the six-beat pattern moves in and out of sequence with the musical four-beat bars. The Jive steps move within the music in a six bar pattern (24 beats match 6 complete 4-beat bars of music and match 4 complete 6-beat Jive basics), in contrast to Lindy Hop 8-beat moves. Hence, some classes will start with a triple-step (left-right-left) and some with a back rock (left-right),
Body Position And Legs
Body position is "tall" and upright. The footwork is fast and light, but any kicks (and knee positions) are lower than in Continental Rock and Roll. The leader remains static in position, with the follower moving around him.
Dancehold
Standardisation And Organisations
Ballroom Jive moves and styling are standardised by organisations like the ISTD, or the IDTA.
I don't know much about this topic, but you might want to check the thread 
