Here is a list of ones that have been tested and work in Trisquel: http://www.h-node.com/wifi/catalogue/en/1/1/undef/undef/yes/undef/undef
If you would like to purchase one as soon as possible, here are a few:Expresscard, wireless-n: http://www.modem-help.co.uk/D-Link/DWA-643-RangeBooster-N-ExpressCard-Notebook-Adapter.html
Half-mini PCI-e, wireless-g: http://www.oxfordtec.com/us/p253/SparkLAN-WPEA-111N--802.11n-a/b/g/N-2.4/5GHz-Dual-band-2T/2R-Half-Size-Mini-PCI-Express-Module,-Atheros-AR9280-chipset/product_info.html
Mini PCI-e, wireless-n: http://www.oxfordtec.com/us/p226/SparkLAN-WPEA-166G-miniPCI-Wireless-card---Atheros-AR5006EG-AR2425-Single-Chip-Solution-mini-PCI-E,-mPCIe-adapter/product_info.html
Half-mini PCI-e, wireless-n: http://www.aliexpress.com/product-fm/302770403-Half-Size-Atheros-Dual-Band-AR9287-AGN-300M-Over-AR9280-wholesalers.html
USB, wireless-n: http://www.amazon.com/TP-LINK-TL-WN821N-Wireless-Adapter-WPA2-PSK/dp/B002D5EIT4/ref=sr_1_1?s=electronics&ie=UTF8&qid=1295711290&sr=1-1
