They're Haunted Mementos that people have picked up in previous world events involving the Scourge. They are not available anymore, and if someone has one in one of their bags, you can sometimes see a ghostly figure following them around.
Supposedly you can find them on the AH (or sell them yourself), but expect to pay an arm and a leg for one.
Edit: It's also possible it came from a Haunted Herring.
Any word on how they plan to change Archeaology to make it easier to 'focus' on a particular race?
Nope. If there is news on this, you'll hear it here.
Did the warlock class quest in Stormwind that had you assassinate the noble get removed? I loved that questline!
Yes, all class quests were removed with Cataclysm. There might be one or two still around in some other, non-class form, but I don't know of them if they are.
Do you think WoW will allow UGC (User Generated Content) in WoW? I mean give the players to created content in the game like cometic items, PvP Bounties, instance maps or areas for role-playing purposes etc..
Won't happen. There's legal reasons for it, and there's also the WoW playerbase. If this were possible, we'd see millions of things all the time, everywhere. No thanks.
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