Wikis are open-source sites, meaning that users may add, remove, or edit most content quickly. Because they are a public venue, students became more engaged and invested in what they wrote, wrote more frequently, edited their work more carefully, collaborated, and became accustomed to frequent peer and adult feedback. Writing practice and in-depth discussions go hand in hand when homework involves posting responses on wiki discussion forums. Students' efforts increase when they know their peers will be reading and commenting on their work. The pedagogical benefits of using a wiki discussion forum and the various available platforms for teachers to choose from are discussed.