MDK3 goes bruteforcing Wireless SSIDs
One good practice is to disable your SSID broadcast so you don’t show up on the victims list. Although this doesn’t make you completely invisible, it does aid reducing ease of location. (Networks can still be located by BSSIDs).
MDK3 version 6 is already available with the latest release of BackTrack 4 on
The Church of Wi-Fi has some SSID wordlists available at their website.