You have several options;
1 - Get your local web guy to do it for you. You write the journal in e-mail form, send it to him with any attached photos, and he does the update.
2 - If you don't know it already, learn some basic html and FTP. If you do, it's no big deal to keep a simple layout and update the site yourself. Most, if not all, pc's have a FTP program installed (try Run on your Start menu in Windows. Type ftp and see what happens).
3 - Keep a link on your homepage to your journals at Horizons Unlimited, this very site. Grant has an offer for people who asks just what you ask(I think?!?). No work for you, other than to write the stuff.
4 - Go the Geocities option as in the above post
5 - You said laptop? Then you can install Dreamweaver or whatever there, and make the journal and links, then transfer to a floppy and ftp to your site
6 - And I'm sure there are more options.....