Livejournal is like
Blog, only better. In my experience, it's incredibly simple to set up; because they host it on their own server space, you don't have to spend all that time fiddling around with getting your own site, or
Geocities, to accept your uploads properly and format it right. It has a variety of journal entry tools, like
Logjam, for most
operating systems in use today. And it makes it easy to build a sense of
community, by linking in your friends list, so that you can see what your friends are doing at a glance, or other people can see who your friends are and what they're like.
True, it's a bit hard to get into because of its popularity--you either have to get an access code from a current member, or buy a paid membership--but once you do, it is worth it!
As for webjournalling or blogging itself (though I've never really liked the term "blog;" it reminds me of the sound one might make if one's breakfast did not agree with him), I feel it is one of the greatest new uses to which the Internet has yet been put. Now everyone can be a journalist or editorialist, reporting on how he feels, what he thinks, or other things that affect him. In the wake of the WTC tragedy, hundreds of people posted news updates from near the scene, their feelings, or other comments. If not the most reliable information source, it will at least be incredibly useful to sociologists in days to come--a way of instantly taking the pulse of America, learning what the people thought, not just the pundits and the press.
I also feel that it is a good way of getting into the habit and practice of writing, so that you become a better writer and an easier writer. Building good habits, such as that of writing a little bit every single day, is a key to becoming a successful artisan of prose.
And finally, if I might dare add in a little plug, my own Livejournal can be found at
http://robotech_master.livejournal.com
http://www.livejournal.com/users/robotech_master/ (if I've let my subscription lapse)