It used to be just books and people. If you were learning to reload, you bought a big manual. The front section was all the information you needed to get started. The bulk of the book was recipes for the cartridges. If you were lucky, there was an old time reloader around and you took the time to get to know him. He'd made a lot of the mistakes you were going to make and if you could, you'd work with him.
Now there's a third option. Al Gore's Interwebz. There are hundreds of websites and forums dedicated to shooting and reloading. Today I am going to offer you one. The Cast Boolits Forum.
For my money, the best of all the forums on reloading. From the name, you can surmise that the heart of the forum is casting, reloading, and shooting ammunition loaded with cast bullets and you would be right. But it also an all around forum on every facet of reloading and shooting you can imagine and some you have never thought of. Subforums for revolvers, military rifles, load data, pictures, and so on. It's a community, too. People get to know each other, swap stories, talk about their lives, mourn the passing of the old-timers.
It's searchable, once you join, if you want to look up load data for 30-30 Ackerly Improved, you'll find something. If you have an old gun and you want help identifying it, post a picture. If you don't find an answer to your question in a search, post it and check back.
I visit regularly, post little, and learn something every time I log in.