The main cost making professions are the mining professions. The AH deposits on enchanting materials are practically nothing, so you can afford to keep put them up for auction over and over again. On the map, there are locations that people simply stroll right past not realizing what they could be earning if they stay in these places. Another gold-making profession is enchanting, and you can disenchant any greens or blues that you find. Lineage2 gold players will get enchanting materials out of your useless soul bound rewards and all the needed items you pick up in dungeon. The green shield you found in Black fathom Depths will not sell for anything, but the strange dust you disenchant from it will sell simply. The buy-low and sell-high strategy applies. Once you know the valuable of things, you can buy them cheap from others and put up for sale them more expensively. As a matter of fact, making money is very simple if you follow some simple tips.