A Few Basics of Using WordPress.com to Host Your Blog
WordPress.com is a free service. If downloading, installing, and using software on a web server sound like Greek to you — and like things you’d rather avoid — the WordPress folks provide a solution for you at WordPress.com.
WordPress.com is a hosted solution, which means it has no software requirement, no downloads, and no installation or server configurations. Everything’s done for you on the back end, behind the scenes. You don’t even have to worry about how the process happens; it happens quickly, and before you know it, you’re making your first blog post using a WordPress.com blog solution.
WordPress.com has some limitations, though. You cannot install plugins or custom themes, for example, and you cannot customize the base code files, nor are you able to sell advertising or monetize your blog at all on WordPress.com. Also, WordPress.com will display advertisements on your blog posts to users who are not logged into the WordPress.com network.
But even with its limitations, WordPress.com is an excellent starting point if you’re brand new to blogging and a little intimidated by the configuration requirements of the self-installed WordPress.org software.
The good news is this: If you ever outgrow your WordPress.com-hosted blog and want to make a move to the self-hosted WordPress.org software, you can. You can even take all the content from your WordPress.com-hosted blog with you and easily import it into your new setup with the WordPress.org software.