Let's say you take an online survey to learn more about how to take care of your car. A day or so later, you receive an email from the auto company that created the survey about how they could help you take care of your car. This process would be far less intrusive than if they'd just called you out of the blue with no knowledge of whether you even care about car maintenance, right? This is what it's like to be a lead.

17. Amazon – Have you heard of FBA? It stands for “Fulfilled by Amazon” and it’s getting pretty popular. Basically, you buy products (in bulk is best) and ship them to Amazon for them to store. When your products sell, Amazon packs them up, ships them out and sends you the money (after taking their cut). There are people making a full-time living from FBA, while others just do it for some extra money.
Create a killer course experience: With your course validated and in the works, you need to figure out how people will take it. Most course creators choose to host their courses (after going down the path of learning how to make a website) on their own blogs. This way, they get all the value of bringing customers back to their site on a regular basis. I host my own courses from a subdomain on my own site so I can easily add more. The course experience is incredibly important as well. And after trying most of the solutions, I highly recommend Teachable—an online platform designed specifically for courses.
How to Get It: Begin with sites like UserTesting.com, YouEye.com and Userlytics.com. Register with multiple companies for opportunities to test as many websites as possible. Once you're in the system, you'll be emailed when testers are needed, and if you're one of the first to respond, expect to spend 15 to 20 minutes completing the test. Many sites require a microphone and/or webcam, which are built into most laptops—but if you need to buy one, they aren't expensive. The tester sites typically pay within a week or two via PayPal.
With the growth of the internet, the world has changed from one of information scarcity to one of information abundance.  In fact, according to Google chairman Eric Schmidt “there was 5 Exabytes of information created between the dawn of civilization and 2003, but that much information is now created every two days and the pace is rapidly increasing”.