I have a small blog essentially for the same purpose (store trips, share with F+F); I just signed up initially for a go daddy-hosted wordpress site. Really good deal the first year with coupon, including hosting, domain name etc, but they get you on the renewals the next year...
Wordpress is great because of all the plugins that you can add. I find the GPS track plugins like- Google-Maps-GPX-Viewer - super useful/cool for showing a GPS track on a map. But the downside is that lots of these plugins, like the before mentioned one, is that they are often hobby-sidejobs for the programmers and readily updated/get broken with wordpress updates etc.
Here is my site if you needed some ideas for a wordpress trip report site
Bookmarks