'borrowed' from DVDF forum:
Do the string of quests by Kerrsh the Asuran (located in that remote asuran outpost, Tarnished Haven). When you reach the last quest : "the path to revelation" go to Varajar Fells and vanquish like you would do to get norn points (the area in itself is nice for that), once you reach rank 4 and if possible under the rampage bonus : go for the quest.
You'll have to face 6 bosses (the facets of Glint) one after the other for an easy 500 points per boss (or 250 if you don't have rampage on)
In the run during wich I took the picture, I made more than 7 k norn points, quite easily and quickly.
Of course, don't take the reward, abandon the quest, retake it , rince and repeat.
EDIT:
I've learned about that farm run like hours after accepting the reward for that quest... so dont make the same mistake