Heres a list of some easily missed quests in Kalimdor if you are looking to finish the Loremaster achievements:
[quest=9528]A Cry For Help[/quest] (Azuremyst Isle - 13,72)
[quest=938]Mist[/quest] (Teldrassil - 31,31)
[quest=5713]One Shot. One Kill.[/quest] (Darkshore - 45,90)
[quest=1271]Feast at the Blue Recluse[/quest] (Stormwind 51,93) Only doable if you finished [quest=1222]Stinky's Escape[/quest] in Dustwallow.
[quest=9576]Cruelfin's Necklace[/quest] (Bloodmyst Isle - Cruelfin Patrols the beach from 33,92 to 49,93, quest item is a drop off him)
[quest=1090]Gerenzo's Orders[/quest] (Stonetalon Mountains - 71,60 at the bottom of the mine)
Also...do the Tier 0.5 Chain of quests. There is a large amount that span both continents and they all count toward the quest completions for both Kalimdor and EK. It starts with: An Earnest Proposition (http://www.wowhead.com/?search=An+Earnest+Proposition) and if you happened to have already started it and trashed your [item]Extra-Dimensional Ghost Revealer[/item], you can get a replacement from Mux Manascrambler (http://www.wowhead.com/?npc=16014) in Tanaris.