Replying to Buying and Selling Gold

its time for me to start paying for next winter which means working all summmer, but ive been considering buying and selling gold through the internet. it seems like it would be pretty simple and i could always push drugs but this i can do quickly over the internet and its not as frowned upon. im just wondering if anyone on NS has attempted to gain some profit from buying and selling gold particularily over the internet? i mean i know the basics, but im just looking for some insight