Wordpress is prewritten software you can upload to your website that creates a blog-based website on your own servers. Then you can customized it with predesignedtemplates, plugins, and widgets. It’s a quick way to throw up a website without a lot of work. This site, FaithHacker.com is built with wordpress. Here are some examples of sites I’ve made using wordpress:

EngageConference.com
SaylorvilleBaptist.com
SaylorvilleYouth.com
ImpactAustralia.com
ExperienceImpact.com