Neighbornode: free Wi-Fi plus local gossip

The New York Times reports on Neighbornode, an application that allows people who like to share their Wi-Fi connection, to add a community online bulletin board that allows neighbors to post "for sale" items and of course, trade gossip.
Instructions for setting up a Community Hotspot and Neighbornode are at the NYCWireless website. NYCWireless is a volunteer community group in New York City which promotes open wireless hotspots in public places. Here's how they describe Neighbornode:
With Neighbornode, residents who live on the same street can post messages to one another via local online bulletin boards. Local issues, upcoming events, and items for sale or trade are all topics for discussion on the boards, giving users a great way to share information with their neighbors and get to know the people around them.
You can see the uses for Neighbornode: people who are new to the area can ask residents for their favorite restaurants, green grocers and dry cleaners, others can organize to solve problems in the neighborhood. Think of a very local "Craigslist". People who are totally clueless about securing their networks should first read the NYCWireless online guide, which is provides clear instructions even for non-techies.