First off, if you know anything about hunting, you do NOT go where monsters deal significant damage. For example, a level 17 will not go to the rock monsters or the heavy ghosts.
Next up, if you can kill about 50 or so without heals and still not die, then you are pretty safe. For me, I’m always hunting at Bandits because I can 2 hit them, they deal less than 10 damage, and they seem to be lucky for me. Not to mention there are two special monsters there! Obviously, if you higher or lower than my level of in the 40’s, you want to go a different area that suits you.
If you dedicate about an hour I am sure you will find refineds. I dedicate at least 90% of my time to item hunting, that’s why I have loads of refineds, uniques, and some elites. If you go to places where you can one or two hit the monsters it will be much easier.

Monsters that seem to drop items decently:
Pheasants – meteors, PK tickets (collect 6 for 6K money)
Turtledoves – meteors! You can probably just let the patrol do the work for you and snag some Lvl 10 items and meteors.
WingedSnakes – many people have found their Dragonballs here (In fact, I got mine here at level 30)
Bandits – I found elites, +1’s and dance books…

Monsters that ensure you an item drop (specials):
Blue Dove – Hangs out with Turtle Doves, blue in color – Drops Lvl 15 items – Sell @ NPC for less than 200
Battle Ghost – Hangs out with Apparitions, wears gold armor – Drops Lvl 25 items – Sell @ NPC for 500
War Ghost – Last seen with Poltergeists, wears gold armor – Drops Lvl 30 items – Sell @ NPC for around 1000
FireSnake – Very rarely seen, Seen with WingedSnakes, Drops Lvl 35 items – Sell @ NPC for around 1333?
Catarans – seen with Bandits, drop Army Token if you are lucky which allows you to get a Refined Lvl 45 Peace Sword from Army Token quest
Cataran Boss – Very rarely seen, Seen with Bandits, colored blue, Drops Lvl 40 items – Sell @ NPC for
Roaring Ape – Hangs with Giant Apes, purple in color – Drops Lvl 55 items – Sell @ NPC for : 2433
Snow Ape – Seen with Thunder Apes & Rock Monsters, white ape – Drops Lvl 60 items – Sell @ NPC for 3330
Snake Monster – Seen with Blade Ghosts & Rock Monsters, green snakeman – Drops Lvl 65 items – Sell @ NPC for 4289
Mount Monster – Likes to be alone, southeast of Moon Spring, green and yellow – Drops Lvl 75 items – Sell @ NPC for 5729
Stone Monster – Buddies with Rock Monsters, between Moon Spring & Stone Village, green & yellow – Drops Lvl 80 items – Sell @ NPC for 7533
Blade Monster – Seen with Blade Ghosts & Hill Monsters, colored blue – Drops Lvl 85 items – Sell @ NPC for : 9366
Green Devil – Inside Mystic Castle (middle), near Bloody Devils or Devil Kings, green – Drops Lvl 115 items – Sell @ NPC for 33333
Bull Devil – Inside Mystic Castle (left side), near Bull Monsters, green – Drops Lvl 115 items – Sell @ NPC for 33333

“Secret Maps”
If you’re high enough level you can go over to the Metzone:
http://www.conqueronline.com/guide/n441_357582.htm
Old Map in Phoenix Castle is great since there’s always monsters (unless you killed all of them):
• Its located in the area below the village of Pheonix Castle
• Coordinates for the portal: (851, 480)

What the good items do:
• Dragonball: Use it to up the QUALITY of the weapon from Normal to Refined to Unique to Elite to Super. Each upgrade gives you approximately 15% extra in attacking power.
o Extremely rare to find Dragonballs, if you find one you might get pked so please do run and deposit it ASAP.

• Meteors: Use it to up the LEVEL of the weapon – mostly in the increment of 5 levels each time. For example upgrading a level 15 club will end up at level 20…

o Fails if you use at Twin City Artisan, or you can go to Market and pay more meteors for a 100% success rate
o Mythical 5% socket rate for non-weapon items in both cases, is only way to get socketed armour, bags, caps, coronets, etc.

• +1 items: Use them to compose your main items – It’s independent to its quality, just adding extra stats onto what you already have.

o Composing +1’s don’t fail.
• Night Devil Books (ND): Dropped by Heavy Ghost L23, maybe regular HeavyGhosts also (the Heavy Ghosts have been renamed to Poltergeists…)

• Fire of Hell books (FOH): All monsters may drop, for Fire Taoists to learn Fire of Hell.

• Bomb books: Any mobs may drop, for Fire Taoists to learn bomb magic.

• Dance Books: There are 8 kinds of dance books. Right click on the books to learn different dance styles. Dances can be activated through the skill button on the console.

I dug this up. This was written when I was a lvl 40ish trojan

Originally posted by Andromedom
Dances: 2,3,4,5,6,7,8 and Fire of Hell and Bomb scrolls

Fire Of Hell and Bomb are mainly found in the 1st map of the Ape Mountain drop by Snakes or HawKings in the Bird Island in front of the City. People had claimed also have found them in the desert but is more uncommon.

Part 2:
Mining.

Mining is a very simple thing. You buy a pickaxe from the pharmacist for 1000 silvers. (You must press the small arrow at the right hand side to be able to see the pickaxe and dyes) It can only be equipped at level 15.
Then you have a choice of mines, depending on your level. There is one for lvl 40+, lvl 70+. There are rockmonsters lvl 42 in the lvl 40 mine, rockmonsters lvl 72 in lvl 70 ape mine, lvl 92 in desert mine, so be warned to go to second level of the mine if you are afking.

The Mines:
lvl 1 (Plain Mine) Use conductress and press plain mine (from twin city) and enter the portal.

Alternatively, you can travel all the way down, across the bridge to the left, and all the way up the map to the top left corner.

lvl 40 (Forest Mine) From Pheonix Castle go all the way down, across the bridge near the revenant area. Then go all the way to the bottom right.

lvl 70 (Canyon Mine) From Ape Mountain, go out the city, to the right all the way, and go all the way around past 3 bridges to the bottom of the snakemen. There should be the assistant who will teleport you there.

lvl 70 (Desert Mine) From Desert City, go out the city and go all the way to the top right corner, where you will find the assistant.

lvl 1 (Jail Mine) From twin city, go out the city and to the right there is a NPC that will teleport you there for 1000 silvers. Please be aware you might get pked in there because people do nto get pk points for killing white named players.

Part A.-What you will be mining
Iron-Iron is useless except for making a Class one house, otherwise sell to a NPC. In the case of making a house, you must collect 2500 ores (and 300K) in total. For more info, go here: http://conqueronline.com/guide/house.htm
This is found in all mines.
Copper-Copper is found in the lvl 40 mine and jail mine. It is used for lvl 2 house (1200 of them are needed in total as well as 500K).
Silver-Silver is found in the lvl 70 mines. It has no use other than selling to the NPC.
Gold-Gold has a variety of uses, just like in real life! It has many quests associated with it.

This includes the
Alchemist quest:http://www.conqueronline.com/guide/ljs.htm
refined Moongem quest:http://www.conqueronline.com/guide/moongem.htm

Euxenite-Euxenite is pretty worthless except for a few leveling matters. You can use it for leveling when you are between 15-30. Also, archers need 5 to get promoted.
The leveling quest from CoachLi:
http://conqueronline.com/guide/ljt.htm

Part B.-The procedure
To mine ores and gems, just right click on the pickaxe or hoe in your inventory, right click on the ground to start mining. To stop mining, just left click on the ground. A hoe can only be obtained when you talk to the jail warden. It is worth 0 dollars, as opposed to the pickaxe.

Part B1-When you get bored
If you are a warrior you can do this quest for a lvl 40 refined shield: http://www.conqueronline.com/guide/zsj.htm
Part C.-The goods
If you are lucky, you will find a gem. A gem will have the smoke like a meteor. Normal gems may range from 10k kylin gems to 500k dragon gems. Refined gems range from 90k kylins to 5 million dollar dragon gems. Supers range from 3 million kylins to 50 million dragon gems. Then again it depends on server.
Gem information: http://www.conqueronline.com/guide/baoshi.htm
Elite Archer coat quest needing gems:http://www.conqueronline.com/guide/wy.htm

Credits go to LifeInfusion.