I have had another look at WordPress blogs, and found a really great facility in WordPress.
With both WordPress and Blogger, your posts are organized in order of entry with the newest one at the top. But what do you do if you have a post or topic which you want to keep always at the top, so that everyone who reads your blog will see it? WordPress has solved this problem by adding "pages", which have tabs across the top of the blog and can be seen immediately.
Once I found out about this facility, I immediately understood why Wordpress blogs are so popular!
Here, by way of example, is the WordPress blog which I have created to tie together my book and several of my blogs: http://carolwalczak.wordpress.com.
There you will see my first and only post for the moment, and big tabs across the top for "About me", my book "Choose to Live!" and my "Grief Log" blog.
If I want people to go directly to the "Choose to Live!" page, I can give them this link: http://carolwalczak.wordpress.com/choose-to-live/ and I can also use this link to advertise my book on the traffic exchanges.
This is a fantastic way to tie together several ideas or forms of expression, it's exactly what I've been looking for.