Well, it was inevitable - the Wings With Wires site that hadn't been updated for almost two years has closed up shop.
I just cruised by today and happened to catch it the day it was posted:
"Dear Customers,
The Wings with Wires website will be closing at the end of this year, and all our in-stock products have been marked down 15% for liquidation. Now is a great time to get those Windsock Datafiles that you might still need!
Thank you for all your business, Julie and I have had a great time with the site - and maybe some day in the future we might even make a sim, who knows ;)
-Sean & Julie
Wings with Wires"