textpattern

Loudblog itself is an open source podcasting tool but the site is created with Textpattern and uses PunBB as the support forum.

It's a simple design that does what it needs to do without being too flashy.

http://sonspring.com/

SonSpring is a TextPattern powered site from a small, Christian web studio that specializes in creating sites for churches and non-profits. Sections of the site include a journal, resources, theology resources, and a portfolio.