According to Wikipedia, AMBER alert stands for …
“America’s Missing: Broadcasting Emergency Response, but was named for Amber Hagerman, a 9-year-old abducted and murdered in Arlington, Texas, in 1996.”
MissingKids.com says …
“The AMBER Alert Program is a voluntary partnership between law-enforcement agencies, broadcasters, transportation agencies, and the wireless industry, to activate an urgent bulletin in the most serious child-abduction cases.”
If you just type “amber alert” into Google, Google will show you the latest amber alert in your area if any. Google knows the general location where you are surfing the web from, so it can display amber alerts in your area.
You can get a more generalized view of more amber alerts at http://www.google.org/publicalerts
Or see the latest Amber alerts at http://www.missingkids.com/AMBER
Sometimes amber alerts will sometimes display on smart phone such as Android and iPhones. They are broadcasted over freeway signs, radio, and television.