There is a current trend in social website looking to connect neighbors together. many website have recently piped up all looking to solve this social subject. Its claimed that many part of the world neighbors are knowing each other less than ever, and by getting neighbors to know each other more and have an each method of communicating together as a group can lead to a better safer 

neighborhood.

Here are some website all looking to dominate this space. 

http://www.nextdoor.com

http://www.innwan.com

http://www.everyblock.com

http://www.neighborly.com

I expect that in the coming years everyone will be part of some social website that connects them to their neighborhood, and it will be as common as having a Facebook or twitter account.