Nice website, I really like it
Kind of sites I have in mind doing, with similar UI +1
Id centre the Copyright information and put the Tweet in either top right or bottom right. If you keep the tweet in bottom right, id add a nice search menu (similar to WoWhead) in top right, would make it alot easier.
You could even expand your site by adding a forum in future, fully dedicated to crafting. I can see a great potential in your website and who knows, it might generate some great revenue
PS:
Also shared your site with few forums I am part of