First Blog Media are a professional podcast production company. For $200 a month (at Jun 08) they'll turn two of your text posts into fully hosted, produced, professional podcasts then host, etc.
Zemanta plugs into the major blogging platforms (WordPress, blogger, TypePad) and your browser to suggest related content (pictures, tags, links, etc) as you type a post. It can then auto-insert the results into your post (add links, pics, etc). Useful.
Daily Blog Tips is a site to help you make your blog better. Covers monetization, seo, etc.
John Chow is a blogger who blogs about making money from blogs. Along the lines of Darren Rowse at ProBlogger, with a totally different feel.
An article from Steve Pavlina on how to make money from your blog. Recommended by StrongLifts.com.
Dotster offer white label domain name registration and hosting services. The interface is fairly slick. Could be useful.
Sandbox is a generic WordPress theme with extensive CSS styling, etc, which can serve as the base for many theme designs.