Rasmus Lerdorf is a Danish-Canadian programmer and the creator of the first version of the PHP web programming language.
This week you can listen to a very interesting FLOSS (Free Libre Open Source Software) podcast with Rasmus. He talks about the origins of PHP, the challenges of open source development/community, and his favorite PHP programs like Drupal, Sahana and Serendipity.
It´s really worth listening to someone who started an OS(Open Source) project when OS was not really born.

By the way, we are just preparing a pretty longish article on the nice blogCMS Serendipity. Stay tuned and get it by the end of August.