There are a lot of different types of music that have evolved from reggae. These are:
Roots Reggae: This is a form of reggae that's lyrics are mostly about Jah (god). They are also about poverty and repression. Much of Bob Marley's music is roots reggae.
Dub: This is a form of reggae that involves extensive remixing of recorded songs. This was invented by Lee "Scratch" Perry. A lot of emphasis is placed on the drum and bass line.
Rockers: This was created in the mid 70's by Sly&Robbie. This is a flowing' aggressive style of reggae.
Lovers Rock: This is an english form of reggae. The lyrics are normally about love.
Dancehall: This is a style of reggae with raw and fast music with toasting or rapping over the music.
Reggaeton: This is a fusion of Latin and jamaican music, it is popular with Latino youths.