Kingdom

After the quest Throne of Miscellania you can unlock the Managing miscellania minigame. You can make up to 1mill per day while AFK using this mini.

Have all resources put into the Maple logs, and the rest in Herbs. You will get Bird Nest. Sell the seeds, and crush the empty.

(However, if you work on training cooking, you might want to get some uncooked fish this way.)

NOTE: to make 1mill per day, you need at least 50mill in the coffers. With 1mill you only make about 100k per day.

PvP Looting

Req 70 Hunter (may use boost)

catch an Imp in the box. Then enter a PvP world (Or any populated world after Feb first).

Take ONE imp in the box out to the wildy and wait for any decent drops (10k + for starters) and then pick them up and use on the box. This most likely will anger the person who earned the drop and he might attack you. If you die, you keep the 10K+ item in your bank, then loose the 500g box.

Before free trade this will make 50-100k an hour.

After free trade, drops appear to everyone and makes it easier, so you can make 50k-10mill per hour. (amounts over 75k unlikely)

Renivent Dungeon

With the recent wildy update, there is a new dungeon full of renivents. These renivents drop the PvP armour and the PvP statues.

Killing a renivent imp (level 7-9) can yeild up to 50k.

Killing the darkbeast can net up to 5million!

The dragon can net a huge 10million!

(however drops are rare, and i have yet to get anything more then 500g in a kill.)

Air Battlestafes

It is possible to make money from buying air battlestafs on the GE then high alching them.

If An air battlestaff and nature rune are both bought on the GE, you make about 10g per cast.
If you use the charges from your Explorores ring, you can get up to 400g per cast (High only)