Viral marketing. It sounds like some kind of disease, but it's really not. Viral marketing is really word of mouth marketing. Word of mouth marketing is where your customers like your product so much that they tell others about it, others try your product and then tell others about it, and so on.

There are tons of ways to start a viral marketing campaign for your business. One of my favorites though is using an ebook. The reason is that many people like ebooks, and they will read them if you give them something to solve their problems.

When writing your ebook though, there are a few things you want to consider.

First, you want your ebook to be short and sweet. Present a particular problem to your readers and then show them how to solve the problem. This shouldn't take more than five to ten pages.

One way to show your readers how to solve their problems is through the use of your products. If you're not selling your own products, then you want to offer affiliate products that solve the problem.

Format your ebook in PDF. PDF, or portable document format, is a format that is universal to all computers, and anyone will be able to read your ebook.

Once your ebook is ready, then it's time to start your viral marketing campaign.

Start by giving your ebook away. This is one of the easiest ways to make it go viral. Give it to your readers first. (Don't forget to tell them that they may also give your ebook away!)

Next, submit it to ebook directories, as well as software directories. Although this will take you a little time, it is well worth it because it makes it easier to get it into the hands of readers.

(One thing I want to mention here is that if possible, make your ebook brandable. Brandable means that those giving away the ebook may add their affiliate links for your products to the ebook. This makes it easier to make your ebook go viral.)

If you are a member of social network sites like Twitter or Facebook, post a short note to let others know the ebook is available. Let them know you are giving it away. Your note will need to be very short; Twitter only allows 140 characters, so make them count.

Another place to add your ebook is download sharing sites. These sites have become very popular, and they make it very easy for you to share your downloads.

Consider social networking sites like Free IQ or document sites like Scribd. These sites will allow you to give away your documents and get them into the hands of readers.

The more places you put your ebook, the more likely it is to go viral. Write an ebook that others find useful, and then get it into the hands of as many readers as possible.