Read the best Blacksmithing guides for Vanilla / Classic WoW on the fansite WowIsClassic. Guides like "Leveling Blacksmithing 1-300" will help you to quickly level up your Blacksmithing from lvl 1 to lvl 300. You will also find guides that list the best patterns / recipes for Blacksmithing, their drop locations and a lot of tips for Blacksmithing in Classic WoW.
Here is the Blacksmithing leveling 1-300 guide. Best tips for leveling your profession quickly