Can I see a list of organizations that will be at a fair?

Yes. To view registered organizations:

1. Go to:: http://www.idealist.org/fairs
   
2. Click on the city where the fair you want to attend is being held.
   
3. On the next screen, click on "See all registered organizations" near the bottom of the screen.
   
4. On the next screen, a list will appear. You may click on an organization's name for additional details.