There's the ingame tutorial: http://www.twitch.tv/yoshifan007/b/278091937 but I'm pretty sure you already know that.
Here's one about FoF: http://www.youtube.com/watch?v=izBJGvm9dQo&feature=plcp
As for pulling link attacks, you have to set certain attacks to certain command buttons so that you can quickly access them to pull a chain. Don't worry, I didn't really figure it out until like half through the game.
So for example, Guy's Soaring Gale creates a 25% green/wind base FoF. (I'm going by PS2 but I'm not sure if the settings are different from the 3DS and PS2.)Guy's Beast requires a 100% green/wind base FoF to perform Thunder Beast. If a Sunlight Chamber in attached in Guy's Fon Slot Chamber for Beast, by having Guy stand in the low FoF and performing Beast, Beast will turn to Thunder Beast.
A bit confusing, but, it's just all how you set up the skills and chambers. I didn't get any of this stuff until like halfway through the game, so yeah.
Here's some more links that I think you will find useful.
FoF: http://tales.namco.com/forums/viewtopic.php?t=51096
Skill Guide: http://tales.namco.com/forums/viewtopic.php?t=49767
Combat Strategies: http://tales.namco.com/forums/viewtopic.php?p=1822975
HInts: http://www.tales-central.com/?q=abysstips (this one might have some spoilers, so I would advise if you dont like spoilers, dont go here)