Bachata is a very popular dance around around Latin countries and Mediterranean Europe. This genre of music originated in the Dominican Republic, around the early 1920's. This music is danced in couples and it may be danced very slow or fast, depending on the song. Personally, I don't like it that much becuase it's a little too slow for my taste and to be honest I don't dance it that well. Although, I am not in love with it, I do respect it and it is great to watch couplesb dance, if they really know how. Like most dances it has a basic step, three steps to the right and the fourth should be a "half step" where you simply touch the ground with your foot (but you don't heavily step on it) and you pull it back to do the other three steps going on the opposite direction. Also, some people on the fourth step sort of lift their foot off the floor and pop their hip. You must keep this stepping pattern throughout the whole dance, but you can add turns and whatnot to it. I know a few people who are dominican and they love this dance, and they cannot stand when people say, "I hate bachata," they will go crazy on you ( believe me, I went through it), so now you know don't say those three words when you're around Dominicans.
http://www.youtube.com/watch?v=2cehkSxOLNA