It Gives your visitors a reason to come back

In addition to submitting articles for publication on other websites on a weekly basis, you need to be adding new, original content to your own website twice a week. These articles / new pieces of thought may be as little as 200 words. This will give your regular visitors a reason to come back and show the search engines that you're important because you regularly change your content as well as feature original information.

Try adding your new content in the form of a blog

Your regularly updated new content is probably better off being in the form of a blog. Blogs allow other users to add their own comments, keeping the whole experience more interactive and 'of the moment'. Your new comments should relate to current events if at all possible, again signifying that you are an authority on a subject. There are some excellent blogs advising on blog content such as Problogger.net by Darren Rowse and Entrepreneurs-Journey.com by Yaro Starak.

Continual new content is imperative

If you're unable for some reason to be personally responsible for ensuring that new content is added to your site at least twice a week, you may wish to consider the option of outsourcing this role. I can't emphasise how important it is to continually add new content to your website is. A common saying among website professionals is 'Content is King. Linking is Queen.' Links to your website are imperative. But they'll only matter if your website is worth visiting time and time again. Consider letting your visitors post their own articles on your website

Another option to consider if you're unable to spend too much time updating your site on a regular basis is to give users the ability to publish their own thoughts and articles directly on your own website. If this is properly managed, it won't diminish the professional 'look & feel' that you're trying to create. Bear in mind, though, that if you're going to let users publish their own content on your home page you're going to have to give them an incentive - probably a link back to their own web page.