An even better idea is to setup a PirateBox. It doesn't provide internet access, but it does provide access to files and chat. Some have done it over on reddit.
Doesn't sound like a bad idea. What I like about my idea is it simply just shows itself to everyone in attendance that has a wifi enabled device. They choose if they want to visit the site. Has anyone ever confirmed if forcing a JW to view a site actually does anything? I always figured it was their curiosity when they see something and start to look into it.
Example: They see jwfacts.com on the wifi and type it in later while at home and start to read it.