Wordpress Open Source Website Builder
is two different things: it's free open source blogging software that you download and install on your own Web server, and Wordpress.com is a website that hosts Wordpress blogs, with both free and paid services. It's the most popular blogging site, and for good reason—it's fast and easy to learn. With this open source website builder, you can literally create and publish a new site in a few minutes.
If you're new to building your own website, open a free Wordpress account to practice. It includes 3GB of storage, a statistics system so you can see where your traffic comes from, spam filter, and 100+ free themes.
A free Wordpress account isn't suitable for a business website, because you can't use your own domain name; instead you get a subdomain like mysite.wordpress.com. For a business website, spend a few bucks so you can use your own domain name.
Wordpress.com charges $17 to $24 per year for a custom domain name. If you publish lots of content, photos, or videos, extra storage ranges from $19.97 to $289.97 per year, depending on how much you need. There are no bandwidth charges.
Video hosting costs $59.97 a year, and it supports high- and low-definition videos. When you upload video, Wordpress.com automatically converts it to the correct format. Wordpress supports forums, image galleries, videos, blogs, and newsfeeds.