I've just discovered a new blog service called Blogsome after John mentioned it and I immediately signed up for an account. It uses WordPress, it's free, and the domain I wanted was available so I couldn't resist. All I really want to do is play around with WP, so I won't even bother to update it. It also lets you host photos, but I don't know what the limit is. This is a good service to use if you're planning on using WordPress on your own space and want to get a feel for the software before you start spending money on hosts and domains.