Lots of wrong info the past few posts. Let's straighten it out.
Footlocker, Inc owns (online and stores):
-Footlocker (and the variations like Kids Footlocker, Lady Footlocker, etc)
-Footaction USA
-Champs Sports
-Eastbay
-CCS
They all pull from the same stock/warehouse, but not each brand gets every shoe. Obviously CCS is skate oriented, Champs tends to have more apparel, etc. But if you look at shoes that are sold across multiple stores, the stock is the same for FTL/FTA/Eastbay/Champs. For example, look for a shoe thats sold across multiple of the sites. The same sizes will be in stock or out of stock on the sites that carry that shoe.
Eastbay and CCS are not affiliated with Nike, other than holding accounts to sell their shoes.