Once the course launches, they are ready with their wallets. The course is priced at $100 (probably undercharging here, but it’s your first course and you are nervous) so some of them balk at buying it, but 100 people do end up buying it and you make $10,000 (minus processing fees). That’s the same amount you made from your advertising and you are in control of everything! Even better you don’t have to wait 30-60 days to get paid.
Working with advertising networks isn’t your only option when it comes to selling ads. If you end up with enough traffic, advertisers may come directly to you and ask you to place their ad on your site. You can also contact advertisers yourself. The biggest difference from the above mentioned option is that there is no middle man, which means you can set your own ad rates.