Members who have at least twenty-five posts in a month become candidates. Voting begins in the last week of each month. Just vote for who you genuinely think has written the best posts. Votes are anonymous, so you needn't worry about who sees your vote. If you're a candidate obviously you can't vote for yourself.

If you're chosen as MotM, you won't be eligible again for another six months. If the voting results in a tie the candidate with the most posts in that month (before the voting had begun) is chosen. Quantity doesn't equal quality, but in the case of a tie post count seems to be the fairest option.

As MotM, you'll receive 2500W and an achievement.