Business — $299
A custom .com, .net, .org, or .me website address such as http://ourfabulousbusiness.com.
Advanced customization — choose custom fonts and colors, and modify your CSS.
Choose from over 120 free themes or 50+ premium themes, and switch premium themes at any time.
Unlimited storage space for anything you want to upload.
Direct email and live chat support from our Happiness Engineers.
Note that none of the plans allow you to upload your own themes or plugins. If you need a site that requires a custom theme or plugins — e.g., if you want to be able to sell things directly from your site, or you want to install discussion forums — a self-hosted WordPress site might be right for you.
WordPress.org offers free software that you can install on a web server. You can upload and install themes and plugins, run ads, and edit the database. Learn about the differences here. http://support.wordpress.com/com-vs-org/