The answer to how to have a blog first depends on why you want a blog. (The word blog comes from combining web and log, as in a log of what you’re doing).
Cloud computing is hot these days, and for most of us The Cloud means Google. We use Gmail to send and receive messages, GDocs to create or exchange documents, and Google Reader to track our favorite Web sites. Those on the Web check their traffic with Google Analytics and monetize their sites with Google’s AdSense. Some of us even use Google’s Blogger to create and host our sites.