This exists: http://www.lifeat.com http://www.lifeat.com Has done for some time: http://techcrunch.com/2007/10/16/does-your-building-need-a-social-network-why-

This exists: http://www.lifeat.com http://www.lifeat.com Has done for some time: http://techcrunch.com/2007/10/16/does-your-building-need-a-social-network-why-not/ http://techcrunch.com/2007/10/16/does-your-building-need-a-s... Since reading that article almost 3 years ago, I've not heard another thing about it. I guess it's pretty hard for hyper-local networks to spread like the wildfire of Facebook et. al.