It was about this time last year, when I first heard of NaNoWriMo.
NaNoWriMo stands for National Novel Writing Month, and the month in question is November. The idea behind it is simple: Write (or try to write) 50,000 words of the first draft of a novel within the 30 days of November.
You read that right. 30 days, 50k words, 1 book.