There are lots of places to learn this offline and online. Perry Marshall is pretty good at it, most of the best things I've read and learned from have come from bookstores.

It takes a lot of practise and it's not something you figure out over night. You may be able to use it over night but believe me, you won't get the profit you could get if you treat this as the science it is. It takes time and practise to get it right and it's important the site you're sending them to has it right too, or you'll lose your shirt.

Incidentally, all those sites in your signature, are they your sites?