One of the fastest growing types of web site is a blog site. What is a blog? The word is a contraction of "web log". It is a site where a user (typically one) posts articles and other users post comments on the article.
Some people create their blogs as single-author sites. They may focus on a single topic or may vary among a number of topics. Blog authors may be writing for others, providing informative content (e.g., JenSense, which focuses on Google’s Adsense content-driven advertising such as you can find on my sites. Another is GrokLaw, which provides documents and commentary on legal action affecting the Open Source community. A number of GrokLaw documents and comments have focused on the SCO lawsuits. Other blogs are written for fun, such as James McClellan’s Bug’s Bleat.
A number of magazines are creating blogs to create more interest in their website. More interest means more visitors, which means more interest by advertisers, which means more advertising income for the magazine. Many, like Infoworld.com, have daily or at least weekly articles added to each blog.
Some sites are technically blogs, but are really communities of users. Slashdot.org, sometimes written as "/." is an example of the blog community. Slashdot is focussed on computer technical subjects. Many, many readers also post comments, and the comments far outweigh the initial posted articles — usually 400 or more to 1.
I started blogging last year for fun, with the blog software actually running on my Linux box in my house. It was not accessable to anyone else, but it was a fun thing for me to do. Eventually, I moved it into my Powweb webhosting package and set up a domain for it via GoDaddy.