Here is one from sephora (the "pink" color): http://www.sephora.com/browse/product.jhtml?id=P134001&categoryId=S10820&shouldP aginate=true

I found this site where you can order ANY color concealer:
http://www.corycosmetics.com/concealer_products.htm
Salmon is more toward the bottom of the site.

Thats all I could find. If you cant find a concealer that actually says "salmon" .. try to find one that looks pinkishy instead.

Hope that helps!