There are a few options for wikis, which are websites editable by anyone who is a member or has access. The two most popular are Wikispaces and PBWorks. Both allow users to share editing privileges on pages, upload files, and add links.’ Great for projects, brainstorming and sharing work.’ The teacher can often control which pages can be edited and by whom.’ PB Works allows teachers to create user accounts without an email address. Wikis can be protected (walled garden) or public.