Here’s a great interview on SEO Book with Matt Mullenweg (Wordpress, MA.TT), who ironically enough of course, put together Wordpress…
I think it’s interesting how well he grasps SEO without really trying for it, instead goes for usability… As he describes Wordpress’ SEO value:
…like well-structured semantic markup, sane URL structures, meaningful title tags, and such.
Anyhow, its a good read, talks about how he got started, his outlook on usability, Wordpress and SEO, so definitely worth taking a look at!