December 18, 2009 — Josh Grenon of Inspirageek sits down with Matt Mullenweg at WordCamp Birmingham to discuss development of WordPress 2.9, VideoPress, tips for entrepreneurs, recommended reading, and iPhone applications.

November 13, 2009 — Matt Mullenweg from Automattic, Chuck Reynolds from rYnoweb, and Joshua Strebel from Page.ly answer questions from the audience and talk about WordPress 2.9 in this roundtable discussion.

October 29, 2009 — Matt Mullenweg on uses for WordPress, the difference between WordPress.com and WordPress.org, WordPress VIP, the WordPress Showcase, WordPress and social media tools, and the challenges ahead for WordPress development.

October 27, 2009 — Matt Mullenweg talks about WordPress, how open source creates ownership, the importance of community to WordPress, the role of BuddyPress in social media, and the infectious nature of the open source mindset.

October 17, 2009 — Matt Mullenweg’s recorded video message at WordCamp Kyoto 2009 in Japan.

マット・マレンウェッグ氏ビデオメッセージ　ワードキャンプ京都2009 （日本語音声）

Recorded & translated by Naoko McCracken, Fumito Mizuno & Toru.
Event video by Hiro Shinohara & Ian Cheung (Messaliberty).

October 16, 2009 — Matt Mullenweg’s recorded video message at WordCamp Kyoto 2009 in Japan.

マット・マレンウェッグ氏ビデオメッセージワードキャンプ京都2009 （日本語音声）

Recorded & translated by Naoko McCracken, Fumito Mizuno & Toru.
Event video by Hiro Shinohara & Ian Cheung (Messaliberty).

October 13, 2009 — Matt Mullenweg gives an overview of the GPL and how it benefits WordPress, why WordPress is licensed under the GPL, how the GPL fosters innovation, affects themes and plugins, and creates value.

The directory of premium theme authors who support the GPL as mentioned in the interview is located here.

September 19, 2009 — Matt Mullenweg of Automattic answers questions from the WordPress community, including making money from open source products, migrating from WordPress.com to WordPress.org, the history of WordPress, the roles system in WordPress, core vs. plugins, blog comments, WordPress security, and more.

Video production by Joe Christensen of Blaze Streaming Media.

July 11, 2009 — A question and answer session from WordCamp Montreal with Matt Mullenweg. Questions were submitted by WordCamp attendees and also asked during the session, and cover such topics as tags on WordPress.com, the WordPress upgrade system, multilingual support in WordPress, and more.

July 3, 2009 — Matt Mullenweg’s presentation on web app performance at the Velocity 09 conference