Nouben ・ のうべん

Nouben　is a Japanese dictionary website with a twist...

Not only can you look up words and see example sentences, but you can look in detail at the Kanji for different levels of the JLPT exam and also take quizzes!

There is a great deal more to explore too and I think that it is a really useful learning tool.

JLPT ・日本語の力の試験

The Japanese-Language Proficiency Test (JLPT) has been offered by the Japan Foundation and Japan Educational Exchanges and Services since 1984. The exams are held twice a year in July and December and at the beginning, there were approximately 7,000 examine-es worldwide. In 2011, however, around 610,000 people worldwide sat the exams, making JLPT the largest-scale Japanese-language test in the world. 

The English language version of the JLPT exam site is here

Official text books can be bought here 

On-line sample questions for all levels are here

Sample questions to download are here