Startup NextDoor, a social network organized around neighborhoods, is now in 3,600 neighborhoods and adding about 20 new ones per day, up from 176 neighborhoods nine months ago.
The site is organized in a Facebook-like activity feed, where members ask questions of others in the neighborhood. About 20% of the posts on the site are about crime or safety. Engagement is also high on the site, with about 40% of members have contributed posts on the site.
NextDoor also sends emails to members so that they do not have to go to the site to see what is happening in their neighborhood. A new feature called groups lets people discuss particular interests such as sports groups, without the entire neighborhood having to see posts about specific interests.