Scotland on Sunday: Not just another day in the office
- James Rampton interviews Ricky Gervais about the series.
- http://scotlandonsunday.scotsman.com/review.cfm?id=764752005

Aerial Telly: Extras
- Fan-written critique of the series.
- http://aerialtelly.co.uk/extras-bbc2.php

PopMatters: Extras
- Review by Tim Whitelaw.
- http://www.popmatters.com/tv/reviews/e/extras-050926.shtml

Off The Telly: Extras
- Review of the programme, penned by Lee Madge.
- http://www.offthetelly.co.uk/reviews/2005/extras.htm

BBC News: Extras 'a nightmare' says Gervais
- 'Ricky Gervais has revealed his new BBC sitcom Extras was a "logistical nightmare" to shoot - because of his celebrity guest stars' busy schedules.'
- http://news.bbc.co.uk/1/hi/entertainment/tv_and_radio/4680133.stm

Wikipedia: Extras
- Article containing a synopsis of the programme, an episode guide, trivia, a list of regular and guest cast, and links to related material.
- http://en.wikipedia.org/wiki/Extras_%28sitcom%29

IMDb: Extras
- A full list of cast and crew with a message board, viewer comments and links.
- http://www.imdb.com/title/tt0445114/

HBO: Extras
- Offers a synopsis of the show, character profiles, video clips, interviews, an episode guide and message board.
- http://www.hbo.com/extras/

BBC Comedy: Extras
- Official site. Contains news, interviews, photographs, cast and character profiles, video clips and a list of guest stars.
- http://www.bbc.co.uk/comedy/extras/