Pet System: Non of them are really worth it, social pets disappear when your character comes into combat mode, combat pets just give you a small buff or attack the enemy with very low damage.
There are many guides for many different zones, just look them up under Raids and Tactics subforum.
This one is for the level 80 khitai dungeons that are mostly farmed by all the players all the time long
http://forums.ageofconan.com/showthr...and-Godslayers
For Raids you can watch some videos or just go into a guild that teaches raids (they mostly have some links where the tactics are explained but you will learn by doing, there are many other people that have never been in raids and so on, just ask if they teach you how to do it)
Low level dungeons are tank and spank fights most of the time.
Here is a site where you can look up all the playfields and the ways to get there as well as the dungeons and all the level ranges
http://www.valmerwolf.com/AoC/maps.htm (but you can see them ingame on the map too).
Crafting is still the same, talk to an NPC, ask for quest, accept it, farm the ressources / craft the item and repeat. Very boring.
Special recipies drop in certain instances and so on, but they are so damn rare that you need to farm them almost a complete week to get one to drop (and often it is not the one you wanted)