To date, nothing is known about the nation called Hivites outside of the biblical accounts.  They are mentioned several times in the bible and most often listed amount the Canaanite nations God would drive out of the land.  They are mentioned living in Gibeon, Shechem, Mizpah, and in the Labanon mountains.  Isaiah mentions their land being deserted which may hint at their demise.  Some believe the Hivites and Horites may be the same entity referenced differently depending on the time.