==> Wlan/ linux
Look for an wifi card adaptator aircrack compatibility (chipset atheros and ralink)
Take a look on the documentation of aircrack
acx100/
adm8211/
atheros/
broadcom/
centrino/
hermes/
ndiswr/
patches/
prism2/
prismgt/
ralink/
rtl8180/
zd1211/