Making the NextGen Vision a Reality: 2006 Progress Report to the Next Generation Air Transportation System Integrated Plan [open pdf - 598KB]
"NextGen implementation has already begun. Right now, two critical foundational technologies are being implemented. Automatic Dependent Surveillance Broadcast (ADS-B) is an essential element in developing our satellite-based surveillance capabilities. ADS-B is different from traditional ground-based surveillance and control systems. With ADS-B the controller, the pilot, and other aircraft see the same information at the same time. Another critical initiative is System Wide Information Management (SWIM). This networking-based initiative is an essential part of developing NextGen's Network-Enabled Operations (NEO). In an Internet-like fashion it will link information of all kinds (position, weather, restricted airspace notices, etc.) to all relevant users in the system. Both of these programs have been funded by the FAA."
Federal Aviation Administration: http://www.faa.gov/