Quest Guide Sortable by type (kill, fedex, escort?)

http://www.thebrokentheused.net/kill/horde.php

Is very good, but I doubt its complete. These are the type of quests (kill X of mob Y) I think Ill be looking for (gonna grind mobs may as well do the quest that wants them killed). WoWhead and Allka dont seem to have a way to sort as to the type of quest, is there a site (paid or free no matter) that lets you sort all quests by type (fedex, colleciton, kill etc.)?

Also these type quests are always sharable right? I mean if you kill one mob all 5 in the group get the credit for the kill?

Yes, in the "Kill 10 Bears" style quests, everyone gets credit for the kill.

You might also want to check out Bounty quests, which involve "go kill X and bring back their head, tongue, spinal cord, etc". When it's just one item from a specific mob, it tends to be a drop that everyone in the party can pick up.