I saw mention of Posterous on Friendfeed this morning and checked it out.
To set up your blog, you only need to send an email to email@example.com. The service will then reply with links to your new blog. You can post text, photos and links to your blog and give it a more use-friendly name. My test Posterous blog is http://douglaswelch.posterous.com
Every day there is less and less reason not to have your own blog -- and post to it regularly. Posterous takes any of the remaining pain out of getting your words and thoughts out to the world.