There are 8 volumes. I know this because of wikipedia. Volumes 1-3 are out, but volume 4 will be out in September 2011. Hope I helped!
arisa
Arisa Mizuki's birth name is Mizuki, Arisa.
Arisa Cox was born in 1978.
Arisa's birth name is Rosalba Pippa.
If you are talking about the shoujo ARISA then there is no anime coming out for it --- No one in the company has decided to start an Anime for Arisa.
Arisa Andō was born on 1961-03-05.
Arisa Takada was born on 1987-02-17.
Arisa - album - was created on 1991-12-04.
Tohru first meets Arisa in chapter 39.
Arisa Ogasawara was born on September 30, 1980, in Japan.
Arisa was born on August 20, 1982, in Genoa, Liguria, Italy.
Arisa Komiya was born on February 5, 1994, in Tochigi, Japan.