There are many internet marketing courses available online. Each creator follows a similar path of creating a landing page, asking for your email, and then giving you all types of wonderful content about how your life will change forever for the better with the secret information contained in the course.
There are some very slick and sophisticated marketers on the internet, trying to convince you that they have the magic bullet that will ultimately give you the dream life you are looking for. And what you have to be careful of is that you do not get addicted to the process and fall into the trap of buying several courses within a short period of time.
First of all, it is expensive, and secondly, the better marketers give you a tremendous amount of content. There are hours and hours of video, written transcripts, teleseminars, forums, and even homework that you need to do in order to get the most out of the course. If you buy more than one course and then try to switch back and for between them, you will find that you don't have enough spare time to get the most of two or more courses. Also the courses teach similar concepts and you get opposite views on the same topics which is confusing.
You should take your time, decide which teacher or mentor you like best, pick out his course if you can afford it and stick with it till you complete it or return it if you don't like it. You will get more benefit out of your investment and you will not drive yourself crazy trying to absorb too much information at one time. You tend to get so frustrated that you put the whole subject course you are trying to learn aside, and leave it sit on the shelf. Then it becomes an expensive waste of time and money.
Just remember that you will learn more, with less effort, taking one course at a time. This is the best investment of all.