Darkwave: A fairly new term that refers to a branch of gothic music that is more introspective, moody, emotional, and artistic -- less rock oriented
Industrial: To go over the basics, a record label called Industrial Records coined the term in 1976. Bands like Throbbing Gristle were the Industrial pioneers. As a subculture however, industrial is much younger, probably only becoming identifiable in the 1990's. Its adherents are called rivetheads. Industrial music has its own subdivisions. There is the more guitar oriented industrial rock music, of KMFDM and Ministry for example, the more electronic dance music called EBM (Electronic Body Music) of bands such as Front 242 and Front Line Assembly, and the more experimental electronic soundscape type of music from bands like Coil and Download. I view Industrial and Gothic to be two sides to the same coin -- the yin and yang, the male and female. Gothic expresses the emotional, beautiful, supernatural, feminine, poetic, theatrical side and Industrial embodies the masculine, angry, aggressive, noisy, scientific, technological, political side. Industrial music often uses electronics, synthesizers, samples from movies or political speeches, loops, and distorted vocals. It tends to be male dominated in those who make the music and those who enjoy it. Industrial culture adherents are usually not quite as bizarre-looking as Gothics in general. The relative newness of the subculture also helps make Rivetheads less noticeable than Goths. There is hugely significant amount of crossover between Gothic and Industrial music and these bands are often called Gothic Industrial or Industrial Gothic depending on who says it.