WordPress is a blogging application similar to Blogger, and you can set up a free, hosted account at Wordpress.com. But it's different from Blogger in that the source code is free and can be downloaded and installed on your own web host.
Here are some libraries that are using WordPress to build their websites. No FrontPage, Dreamweaver, Contribute, or other applications to buy and learn. Just "type in the box and publish."
Library Sites That Use WordPress