I believe the original poster was inquiring about tailoring specializations that became available within the Burning Crusade expansion, specifically that of Mooncloth Tailoring ...
WoW Wiki - Tailoring Specialization Quote:
Tailors now can choose a Tailoring Specialization. Each of these three specializations allow the tailor access to a number of self only recipes and will allow the tailor to make twice as much of one kind of new cloth as a tailor without this Specialization.
* Mooncloth Tailoring: Allows the tailor access to special self-only mooncloth recipes and to create an additional primal mooncloth at a moonwell.
* Shadoweave Tailoring: Allows the tailor access to special self-only shadoweave recipes and to create an additional shadowcloth at the altar of shadows.
* Spellfire Tailoring: Allows the tailor access to special self-only spellfire recipes and to create an additional spellcloth in netherstorm.
Mooncloth will still be created with 2xFelcloth (4 day cooldown). Within the Burning Crusade expansion there is Primal Mooncloth (created with 1xBolt of Imbued Netherweave, 1xPrimal Life, 1xPrimal Water). Primal Mooncloth will also have a 4day cooldown, however Mooncloth tailoring specialists will be able to create 2 Primal Mooncloths every 4 days.
As far as who/where the tailoring specialization is obtained, I'm not yet sure, but a buddy of mine said that the specialization can only occur at level 70 (have a few more levels to find out myself).