Lets just say, Wyodor, that we give you the week off from being the forum police. Let's suppose, also, that Ian up there really is a newbie to Mac, to iWeb and to the forums. Where would he read that proper forum etiquette is to do a thorough search to see if his question has been answere before? Of what use do you think your smug answer will be to him?
Give it a rest. Please. (flame shield activated)
To Ian I say:
iWeb is very much alive. MobileMe as a web host is in it's death throes, but iWeb will stilll be viable for a good bit to come. Not the greatest for a blog, but still the best wysyiwyg (what you see is what you get for you newbies) web site builder that is still very useful and totally intuitive in design. You can then host your site at one of many many hosting companies. I use GoDaddy.com.
For a blog you might try Tumblr or Wordpress which willl take care of the site design and the hosting as well. Good luck.