aircrack has for it's home url: http://www.cr0.net:8040/code/network/aircrack/ The host www.cr0.net does not resolve. The best I am able to find is: http://freshmeat.net/projects/aircrack/
Indeed, aircrack's HOMEPAGE has been MIA for a while now. I put the freshmeat entry down for HOMEPAGE and I'm using our mirrors for SRC_URI. Thanks for reporting!