What is the meaning of “blogging”?

One of the meanings of “log” is to write an official account of an event. In ships for example, captains keep an official written account of what happens each day — this is called the captain’s log. In the old days, logs were maintained in ledgers; nowadays, they are saved on computers. “Blogging” is actually the short form of “web logging”. Like a diary, a blog may include anything — personal opinion, comments and experiences. Unlike a diary, however, a blog is written for others to read and comment on. You upload whatever material you have written onto the web, and you keep updating it on a regular basis. A person who writes blogs is called a “blogger”.

Source: ‘Know Your English’ Series – The Hindu Daily, July 25 , 2005