This does not requires you to have special qualifications to write but in nature requires you to first understand some basics of writing, though in other words it is as simple as writing an article or report, but since an ebook is not as short as a letter or article, this involves a lot of blood and sweat and patience, but atlast turns out into great rewards because this can earn you more than selling articles. Once you have written your ebook (on any topic of your choice, e.g. if you are a good math teacher, you can write your own book) and sell it online through various platforms available such as Amazon, eBay and many more. Even publishing an ebook is task of minutes, which can be easily compiled into PDF format.
To make it simpler, a few insight facts I’d like to share :
Search for the Topic
First most important step in writing an ebook is about deciding the topic you are about to write. Two things that counts on top of each other are: Hot Topic of the culture which you about to target and your personal interest, because if your personal interest takes the front seat the chances are you will end up writing something extra-ordinary. So in short the topic you should choose must be popular enough to attract some eye-balls on your ebook and you must write your content with full interest.
Decide Title of Your Ebook
Once the topic is decided about your ebook your next step should be to choose an attractive title/heading with quality keywords inside. Always keep in note that, it is the TITLE of The Book that makes a lot of people judge that what could be inside (but though this is proven sometimes wrong). Whatsoever, the Title of the book plays pivotal role in success of your book. Think twice or ten times if required, take opinion from different people, and than decide the title once you are confident about that.
Write intelligently, and focus on Quality
Now all you have to do is collect the content for your ebook from offline and online resources, or any other means. Once you are ready with your content in your hands, then you have to use it to turn into a quality ebook which could really give your customers the best return of their money. (yes, this is the key, if your first book becomes a success, than chances are your next book will be success as well). The size of the ebook could be as short as 400 words article or can have 20,000 words in it which means that there is no strict rule for the word count limit of an ebook. But the bigger your ebook will be the higher the cost of it will be. Shorter ebook would have lower price while longer ebook would have higher price.
Promote and Sell Ebook
Once you are done with the writing and publishing (which is easy as few clicks with help of an online software) your ebook business now requires you to promote, and convert into cash (this is what i say make money online :p ). For this purpose you can design your own website (or use a ready made template) or you can use an affiliate network like Clickbank or CJ or any other (Google It) to sell your ebook. However, i will suggest you to sell it online through Amazon or Clickbank instead of your own website, because promoting your own website will be another issue.
Collection Money using Payment Methods
As far as collection of payments is concerned you can easily do so with help of Paypal, Credit Card merchant accounts offered by 2Co or Bank Wire. There are plenty of reliable payment modes today. So this is not an issue at all.
I hope the points i have shared here will help you a lot in this regards.