There are a lot of reasons to blog, including voicing your opinions, doing a public service, and more. A more “insidious” motivation to start a blog is to make an impression on Google, providing updated content to your site continuously (not to say there is anything wrong with romancing Google!) This is because Google does not look favorably upon static websites and gives higher ranks to those which are updated more actively.

Where your blog can be posted/published: If you don’t already have your own web site, many blogging services are available online. Blogger and Wordpress are two of the most used applications. Yahoo.com has also started getting some of the action in blogging. You can insert a blog on your pre-existing website, which is a fairly common practice.