Sorry if this is posted, I searched but couldn't find it.
I dont know if this still works (altho it isnt an exploit so there is no reason for it to no longer work.)
I lvled my mage from 40 - 60 by only AE farming b4 tbc came out.
At about lvl 48 i started farming the graveyards at sorrow hill. after about 4 hours of farming i got my first world epic drop.
The next day around the same time i surprisingly got another.
I decided to test this by coming back again at the same time, but unfortunatly there was a another guy there that kept steal mobs from me and lovingly loled at me when he stole a mob that contained an epic.
Over the next 3 weeks i came to the spot everyday at the same time and most days i got an epic. On the days i did not get one i /w everyone around me 90% of the time one would say "yes he got an epic drop" (10% of the time opposing faction was around).
So in conclusion:
* World epic items have a respawn timer, that spawns in a specific mobs loot table, in a specific zone
* The epic will most likely spawn on a different timer per area
* The Respawn time for Sorrow Hill is/was 7:00am Server time on REXXAR
* This may or may not be the same respawn timer on other servers
Sorry i do not have pics to prove this as it was some time ago. I only found out about this site not long ago
You may flame if u wish, but im just trying to help...its great money.