Content is the biggest component of an effective business website, but it's also the most time-consuming task involved with maintaining it.  Fortunately, there are several options available for producing content on a regular basis.

Do-It-Yourself

Naturally, the tried and true method for creating consistent content is for you to write the content yourself.  That way, you can be sure you have what you want on your site.  Of course, the down side to this is the time it takes to write the content.

Ghostwriter

Another option would be to hire a ghostwriter to write for you.  They are usually quick with turn-around time, and their prices are usually very reasonable, and an added benefit is that you can claim credit for the content and not put the ghostwriter's name on the article.

PLR Articles

You might consider purchasing PLR articles that are related to your business.  PLR stands for Private Label Rights.  These types of articles are sold to a limited number of people for use in whatever way they choose.  They are great for website content, blog posts, and article submissions.

Guest Contributors

Another option would be to publish articles that others have written.  Of course, you must give credit to the original author, but this is a small price to pay for quality content.  You can make requests for guest contributors on places like Blogger Linkup.  Just be sure that you are receiving original content before posting it to your site.

There are many other things you need to do to get your business off the ground, but a website is one of the most important things, and content is the biggest piece to the website puzzle.  The more often you post, the more likely you are to find targeted customers who are looking for your product or service.