And that's just the folks with access to power, an Internet connection, and reasonable web skills.
The New Orleans Times-Picayune newspaper has set up a board on their web site that allows people to try to get in contact with missing persons and/or with others who may know their condition and whereabouts. It's time-consuming, but skimming through it might help some of us recognize a few names and put a few minds at rest:
http://www.nola.com/forums/searching/