Don’t take content from somewhere else and post it on your website without written permission. It’s a copyright violation, and just plain bad business.
You might be able to find some free articles at [url]http://www.articlecity.com.[/url]
You can also hire writers to write content for you at [url]http://www.elance.com.[/url] Some of the lower-priced writers there are pretty awful, so be sure to check out their portfolios before making a commitment to anyone.
Hope that helps.