DISCLAIMER
Participation in the Handbook of Collective Intelligence is completely voluntary and participation will be subject to terms and conditions that will be added at a later date. While you should feel free to participate after registering by adding your contributions via additions, deletions, or edits of Handbook materials at this time, you should be aware that any such contributions will be subject to the terms and conditions that will be added at a later date. Once the terms and conditions are added, you will be required to re-register and assent to the terms and conditions. If you fail to assent to the terms and conditions within forty-five (45) days of their addition to the Handbook, all of your input will be removed from the Handbook. Upon your assent to the terms and conditions, you will be free to re-enter your contributions.
...
Thank you for your participation in this very exciting and groundbreaking project.
From MIT Center for Collective Intelligence
Welcome to the Handbook of Collective Intelligence This Handbook provides a survey of the field of collective intelligence, summarizing what is known, providing references to sources for further information, and suggesting possibilities for future research.
...