Around our town, parents of preschoolers are busy observing in classrooms and filling out lengthy application forms for next year's preschool. Most of our preschools have a $25–$40 application fee and waiting lists a mile long, so it's a process that many undertake cautiously and anxiously.

A "wiki" is a website or other online resource which allows users to add and edit content collectively. By now, most of us are familiar with Wikipedia, the online encyclopedia. But there are other wikis too.