Social Dance
+resources and best practices
Social Dance+definitions
Social dance is a major category or classification of danceforms or dance styles, where sociability and socializing are the primary focuses of the dancing.[1] Social dances can be danced with a variety of partners and still be lead and followed in a relaxed, easy atmosphere.
http://en.wikipedia.org/wiki/Social_dance
Group dances are danced by groups of people simultaneously, as opposed to individuals dancing alone or individually, and as opposed to couples dancing together but independently of others dancing at the same time, if any. http://en.wikipedia.org/wiki/Group_dance
Social Dance+standards in field
Many social dances are partner dances. In fact, quite often when spoken about social dances, ballroom or other partner dances are kept in mind. However it is natural to include in this category such groups of dances as circle dances, line dances, novelty dances, or simply club dancing in solo.
Social Dance+other
related articles on wikipedia:

what's new