Information products are the most popular form of passive revenue that exists on the web. This category covers: e-books, audio programs, e-courses, teleseminar recordings, self-study programs and more.

Essentially, information products are the exchange of information via a product format. These products are then delivered electronically or are shipped to the consumer to allow the consumer to read and use the material when they wish.
A great info-product is one that solves problems quickly and easily. People are not purchasing information products to put on their shelves for the someday pile. No, people search out information products when they are in a time of need. That is why they are choosing to consume an information product - they want solutions to their problems NOW.

An info-product that sells will appeal to a mass market while still having a niche audience. It will also cover a topic that is a hot button issue for people in the moment. Some ideas, like the topic of this e-book, will never go out of style so those are less trendy but safer bets.

The way to make an information product interesting is to incorporate different points of view, resources, case studies or references to other studies done on the subject you are writing about. An author can always go on and on about a particular topic, especially one they are passionate about, but it speaks volumes if the author can show credible resources where other people are getting excited about the topic too.