kanji-a-day
Get – as you would guess – a kanji-a-day with each Kanji tied to its respective JLPT level (online only). Additionally, find JLPT Kanji and vocab lists, JLPT kanji quizes, etc. The site is customizable (e.g. save a vocab list).
NOTE: free registration required
Source: “kanji-a-day.com” | Subject: JLPT Exam