One of the fastest, if not the fastest (and most effective), ways to generate income is through affiliate sales.
An affiliate sale occurs when a visitor of yours clicks your affiliate link and buys something from the vendor.
You get your affiliate link either from the vendor or the affiliate network.
It is a link unique to you and tracks whenever somebody clicks on it.
If they buy, you get a commission.
It is these affiliate networks where you need to focus today.
In the internet marketing realm, there are two big players:
Go register (it's free) and then start poking around in there for offers (products & services) that you think would be a good fit for your audience.
If you're in another sort of field (i.e., NOT internet marketing), you may find some good offers at ClickBank.
It's the granddaddy of them all (at least as far back as I can remember).
And don't forget to check out specific product vendors, like Thrive Themes, A2 Hosting, Namecheap, and the other tools you will be using. After all, if you use them, most likely your audience will use them, too.
May as well get your cut, right?
Here's a link to past emails in case you missed anything: Email Archive.
Any questions, reach out.