Since I ran out of diamond, I stop buying from Blitzkrieg Outlet. By the way the Blitzkrieg is where you can buy some of the usable stuff you can use on your city improvement or fighting techniques.
Freshmen player of War 2 can receive diamonds but supply will last for first seven days. You can buy diamonds, same with other web games.
Hope that I can pick a silver key! I need a silver key for my silver box. I bet there are lots of resources and speed up on that box. I have one silver box left on my stockpile and I cannot open it, been there for almost 3 weeks he he..