I've just been playing around with some Wordpress plugins. There is a cool one that gathers a list of related posts for any post, and displays them when viewing an individual post entry (go ahead and view the page for this entry - look down - see that list?).
I've also dropped in plugins to highlight instances of words matching parameters from search engines, to make it easier to find what you were looking for in Google or whatnot.
Also, there is a breadcrumb feature now too, to show a bit more context when poking around in the various pages of this site.