For all of you who are learning languages, Memrise is a website worth trying.

It uses the good old approach of spreading the learning of each word over an appropriate time, as you might already know from the Anki spaced repetition algorithm.

The approach of Memrise works for more languages, and provides an excellent interface, comparing words with flowers that need watering is one of the best analogies they could've come up with.

Go and check it out