As a side note, while getting negative feedback rarely feels good, I want to encourage you to view feedback the way I do: as a priceless opportunity to improve and grow your business. Complaints and criticisms give you important signals that you need to make changes or else risk losing business from frustrated customers. Read this article to learn more: What Should You Do When People Complain About Your Product or Service?

No matter what kind of purchase we’re making or how much we intend to spend, all of us follow a relatively similar path when it comes to deciding what to buy. This buying process, or stages, was first introduced by John Dewey in 1910, but even now — more than 100 years later — it’s still the foundation of understanding buyer behavior and marketing funnel creation.

Entry sources – Monitoring the sources from which people are entering your funnel can be useful data to track, as it gives you ideas for expanding the reach of your marketing campaigns. If, for example, you see that a large number of your prospects are coming from a single guest blog post you did, you can upgrade and expand on it, add a free consultation opportunity on that blog post, and/or find similar guest author positions.
Most prospects will look to enter this stage after identifying your offering as a possible solution and completing the information search process described in the earlier stage. However, some customers might be introduced to your brand after completing Stage 2 with your competitors, as in the case of an industry blog running a comparison chart of the different competitors in your space.
How many people could be inside the Amazon funnel? Basically anyone. Not only does Amazon offer a mind-boggling number of products, but it also offers a broad array of highly desirable personal and business services, including cloud hosting and fulfillment. In addition, Amazon’s platform that is so technologically advanced that it allows almost an infinite number of people to be in the platform at any given time.
The idea behind adding value to your website is that people who become daily users are much more likely to also become clients. If you don't sell a product yourself, you can become an affiliate marketer and post affiliate ads on your website. If you do sell a product, a daily user will have a chance to see more of your offers/products and buy them.
^{Online Sales Funnel – one of the most crucial parts of your business and one that should be on your agenda on a weekly basis. Without marketing your business will eventually fail as you will not get new paying customers. Good thing with online sales funnel is that it can be automated for the most part. You build it once and then just update it when necessary. I call this #automagic and a first step towards passive online income.}

As a software engineer myself, I can tell you that building funnels from an application standpoint takes massive amounts of work. There's a great deal of coding and integration that's required here. From email systems to landing page implementations to credit card processing APIs, and everything in between, so many platforms need to "talk," that it takes the bar too high for the average marketer.