Wikipedia is part of a new generation of public documents—collectively known as wikis—to which many different writers may make contributions. Due to the collaborative nature of wikis, controversy flares up from time to time about the veracity or objectivity of the information. However, the public has embraced these new collaborative forums as convenient sources of information, and you can use similar technology to establish your students as writers and creators of their own classroom documents. This month’s column describes how to incorporate this popular and flexible technology into the science curriculum.