I would like to know the best ways I can get fast gold, easy, without doing anything illegal (private servers, buying gold, etc). I know about the guide on internet, the one here: gold-secrets.com
Can I trust this WoW gold guide? Is Luke Brown’s Gold Secrets Guide worth my hard earned money?

Blizzard removed the section of their terms of service that dealt with buying gold/items. So I figured it was legal when I purchased the 5000g for my first epic flyer several years ago, the site was buy-wowgold or buywow-gold or something like that, only had one hyphen. I got the gold the same day, paid the price they wanted, like $30, without getting scammed or anything, but a few weeks later, paypal blocked my credit card number from any further transactions.
Since then I haven’t needed to buy any. I easily make 500g per day in only a few hours by mining saronite and smelting titansteel. I’m told herbalism is also big money.
Best thing you can do, well it really depends on your level, but if your 70+ farm instances and run dailies. If not, then pick up mining and go around mining stacks upon stacks of minerals and sell them at the AH. And if you dont know how to do it or you want do it faster Gold Secrets Guide realy can help you..
just go for the Gold Secrets Guide, it’s worth the money..