I would appreciate some guidance about Forks: how to earn from them.
How to earn: Once you claim them, you hold then sell, or you sell immediately. You earn from them just like you earn from any other altcoin, except you got them for free.
Not quite...to earn from a fork you need to first own the coin that's being forked. To earn from a Bitcoin fork you need to own Bitcoin at the time of the fork. This can keep many people from profiting from hard forks because they don't already have real balance. This is not for people to earn Bitcoin from scratch, it's how to earn off of the Bitcoin already owned.