In Dragon Age:Origins, whenever you found a codex page you would get XP. You knew this because the amount you earned would appear in the corner of the screen, much like it does when you disarm a trap or open a chest in DA2. My question is, even though you don't see any XP shown when you find a page, I have noticed characters level up after finding one, so does this mean I am getting XP?
I just tried this. Yes, you do get experience. I took note of my character's xp bar in the character screen and I received 50xp for getting a codex item.