Sharpe says that you shouldn't dive into internet marketing until you decide on a niche and figure out what you're passionate about. Do you want to join the make-money-online (MMO) niche? Or do you want to engage in another niche? For example, you could sell products or online courses about blogging or search engine optimization or anything else for that matter. Keep in mind that whatever you're selling, whatever niche you're in, that you need to embed yourself there deeply.
If you’re targeting prospects and hoping to nurture them, you’re hopefully giving them a direct action to take. Measuring the ROI here means simply creating tracking links that will give you this information directly. Increases in your desired action taken should show you your exact lift in revenue. (For instance, if you count an email signup as your conversion, your lift in signups should relate directly to a lift in sales, all other things constant. Plus, you’ll have this user information on file and can then track if or when they convert.)
The engage stage is the hardest to correlate to cold, hard sales. Because users aren’t necessarily looking to purchase here, they can watch your video, learn some information, and not come back to your website for a long time. Try to implement detailed tracking information to show you big-picture user behavior; drop cookies and retrieve path information for every person who views your video or goes to your site. Then, you can see what percentage of visitors end up buying from you.
Brunson talks about this reverse engineering in his book called, Dot Com Secrets, a homage to the internet marketing industry, and quite possibly one of the best and most transparent books around in the field. Communication is what will bridge the divide between making no money and becoming a massive six or seven-figure earner. Be straight with people and learn to communicate effectively and understand every stage of the process and you'll prosper as an internet marketer.