I've started blogging on firstlast.com (using my online alias), but by now I've turned it into my de-facto online portfolio. Most of what I publish goes to firstlast.com/project or project.firstlast.com. I don't think there is anything wrong with this approach: I'm not the subject, but it is my project after all.

The only issue I've had with my domain name was chosing my default email address: I did not like first@firstlast.com, so I went for hello@firstlast.com instead.