The best thing you could prolly do is determine what your server lacks in resources and farm for it. It's what I do on one of my servers. For example, the other day, there was only like 1 stack of Foxflower on AH, So I went and farmed the hell out of it and slapped it on AH to make a quick buck. Other option is to play the market but that requires you to spend gold and it's a gamble.