A fantastic blog on Japanese language, literature, and culture. I revel in this. (And this is what a blog should be — written only so often, and every post is high-quality. Comments are few and long and educated and of very high quality themselves.)
Spaced repetition! "Designed to help you remember facts (such as words and phrases in a foreign language) as easily, quickly and efficiently as possible. To do this, it tracks how well you remember each fact, and uses that info to schedule review times.
I.e.: "She spends her evenings reading manga and drinking at home alone, and she spends her weekends lazing around in bed. She’s a dried-fish woman." And whatever you do, do not miss the Bottom-Biting Bug.