WordPress is an easy to use blogging software, and has quickly become one of the most widely used blogging formats out there.
But you have a choice whether to set up your blog through WordPress.com or WordPress.org.
WordPress.com offers a fast and easy way to set up your blog.
It is a free multi-user source to sign up and publish your blog immediately. You are given a selected number of themes from which to choose.
WordPress.com is backed up and managed by WordPress, thus you don’t have to worry about backing up your posts. Your blog is hosted on hundreds of servers, so you never have to worry about it going down.
You also don’t need to worry about spam, setup, upgrades, or security because it is all taken care of for you.
You are not able to upload your own themes and pug-ins. In addition, WordPress.com will not allow you to post Google AdSense ads or affiliate links. However, WordPress may on occasion show Google text ads on your site.
WordPress.com does offer a VIP program that allows you to run custom themes, custom PHP code, and plug-ins. This is offered to blogs with high traffic and that are high profile.
WordPress.org allows you to install any of the plug-ins and themes available.
You have complete control over the way your site looks and will not be viewed as another run of the mill site.
Also, WordPress plug-ins expands the functionality of your site.
You need a hosting provider that allows you to use MySQL databases and FTP access.
WordPress.org requires a significant amount of technical knowledge to set up and run but you can easily fast track your learning by signing up for my free WordPress Quick Start Guide
You are also responsibly for backing up your content, handling spam issues, and issues with down sites due to high traffic.
Essentially, it places full responsibility on your as the blogger.
Here’s a great Infographic from the awesome folks at WPMU.org