I've added the link for the RSS feed (in the sidebar) and checked it out with feedvalidator.org. It's a useful site. I was pointed there from a Yahoo page about RSS.

I'm still having problems with pretty permalinks. I need these to be working properly so that readers can successfully bookmark the posts.

In the sidebar, almost everything is a link, so it looks less cluttered it they are not underlined except when hovered. But here in the main column, it would be clearer if they were underlined. Hmm.