=.= to make this response long as possible to not seem like senceless spam

=.= "yes"

>.> discover them by exploring and talking to every npc even in teh newbie towns. seing who as added you never saw before. even some old ones have update to a quest or a new quest trigger.

if you don;t want to research yourself then search forum, blogs, wiki, or google perhaps someone made a guide and posted their finds.