Surely this could work just like the "Recommended software for certain Tasks"
The Mod would keep the first post updated with the Websites under seperate headings for different countries...
And it would make more sense to point people toward a sticky, because, say they posted saying "whats the best online retailer", and their location under their Avatar was "Heaven". No one would know which company to point to, and the whole topic gets bogged down. I clear list (possibly even with store locations to allow easier trade) would make everything much clearer