Today I learned about the Memrise Prize. As a mostly* happy user of Memrise, I really hope that this bears fruit.
* Many of the wordlists, even ones provided by Memrise, are deficient in numerous ways; the German wordlists lack principle parts of both nouns and verbs, for instance. Also, the iPhone app decides to log me out randomly. In spite of these complaints, I use it enough and get enough value out of it that I should start paying for it.