I am one of the many internet marketers who rely heavily on article marketing. What is article marketing? Well I like to split it up into two categories to make more sense of it. There's one kind of article marketing that's primarily created for direct traffic and there's a second kind that's done primarily for the links back This second kind of article marketing is a part of what is called Search Engine Optimization or SEO.
It should be pretty obvious why you would want direct traffic back to your website and if you know anything about SEO then you know why you would want links back to your website too. But I'd like to expand upon this second point for anyone who is not entirely clear on it.
If you want your website to rank high in Google (and in the other search engines) then you will need to have a lot of "backlinks" to your website from a lot of different domains.
That's why you want to use an article marketing service which allows you to "spin" your articles and to submit them to a large number of sites at once. These article submission services are not free but they are worth some cost because they will allow you to greatly "leverage" the time you spend with your article marketing.
Sure you could write up different versions of your articles and submit them to hundreds of sites on your own but that would take days (or maybe even weeks!) You can do the same thing using a top article submission service in less than an hour. It shouldn't be too hard to see why such a service is worth a significant amount of money if you want to get links back to your site.
You definitely want links back to your site if you want it to have any chance of ranking high in Google. That's how Google ranks sites. Based on how many links (and the quality of the links) which head back to your site.
That's why you want to write high quality informative articles which will be published on as many sites as possible and of course which contain a link back to your site in the resource box.
You really should write articles that are related directly to the theme of your website.
It makes no sense to write article about how to make Indian food if your website is about Nascar. Or to write articles about playing guitar if your website is about fishing. There should definitely be some relationship between your articles and your website that the articles link back to.
This is for two reasons: You want any direct traffic you get (that's traffic direct from the articles you are writing) to be targeted. Obviously people who read your article on playing guitar are going to want to click on a link to a website about guitars but not on a link to a website about fishing. The second reason is for SEO purpose. There is plenty of evidence that Google considers the subject of the page where a link comes from when weighting the "value" of that link. In short: It's better to have links back from related pages than from unrelated pages.