The Japanese Language School Guide allow you to find a school by city and also explain the procedures to obtain a student visa.
http://jls-guide.com/english/school_list/index.html
The Japanese Language School DATABASE is a Database with detailed information about the types of courses available, price, length of courses, % of successful applicants of Japanese Language Proficiency Test, and allow a fast and objective comparison.
http://www.aikgroup.co.jp/j-school/english/index.htm
The Arc Academy's website offer a smaller list of Japanese language school mainly from Tokyo and Osaka with also a list of schools offering Business Japanese courses.
http://en.arc-academy.net/school/
The Association for the Promotion of Japanese Language Education's website is an other website offering a list of school sorted by region and admission conditions.
http://www.nisshinkyo.org/
Asahi Nihongo is a Japanese language school in Fukuoka, the south of Japan, offering different Japanese language courses and internship programs in Japanese firms.
http://www.japanese-school-asahi.com/
Kanrin Japanese School is a Japanese language in Yokohama offering different Japanese language courses to prepare for the Japanese-Language Proficiency Test.
http://www.kanrin.net/courses.html
