I have been using blogs [web logs] for a while now. I have a private diary blog [which I can use for notes to myself, rants, grumbles, or whatever]; I tried a family forum blog but that didn't keep going, and now drifts in cyberspace like a ghost ship]; and this one, which is written knowing you [whoever you are] MIGHT be reading over my shoulder. It's really a notebook, however. It's not carefully written, so I might sometimes be rude, inaccurate, or indiscrete, but it's NOT AIMED AT YOU [you read it at your own risk].
I recommend signing up at www.blogger.com. You can always keep your own blog private - but it gives you access to other published blogs, so you can see what people are doing with them. You'll find exhibitionists; self-publishing artist/writers; forums; journalism [for instance during the terrible days in September last year the New York blogs gave a much more vivid account of what it was like to be there than the media did - and the online media was so swamped with demand that you couldn't get in, anyway]. The blogs got me straight there -
I think I upset a couple of people with one of my postings [so I've deleted it] but it really is supposed to be a quick update page for me to use for sketching, jotting, etc. My website is the only bit which I would consider to be 'published' - and there I try not to upset people, or mislead them.