Visit the library, download off the net, hit Amazon etc etc. Machining is best learned by reading then doing. If youre like me and enjoy nostalgia, yard sales and flea markets are a great source of WW2 era textbooks that are full of pictures of setups showing how to conduct complex operations accurately before CNC.
As for sites...practicalmachinist.com is full of experts with more wisdom than anywhere else, but calling the owner and some of his cronies a **** would be being polite and its mainly intended as a professional resource, so keep the beginner questions to a limit there. The antique forum on PM would be a good place to start for info on your lathe, though it is a bit new for many on there. Beginner operations questions would probably best be tolerated on the homeshopmachinist.net forum, but you have to be a bit leery of some advice there. There are some good professionals on there, but many dont have a clue and regularly abuse/harm/destroy their tools, and even the mags they sell reflect that. There are a few others, but those are two of the more popular.