|Owner||John DeNardo, JP Frantz|
|Alexa rank||151,813 (Global, 12/2014)|
It focused on topics in the science fiction genre such as literature, film, and artwork, but also addressed topics in other genres such as fantasy, young adult, and horror fiction. The site offered readers several weekly and monthly series such as book reviews, link roundups of author interviews and profiles, round table discussions on various topics (termed "Mind Melds"), links to currently free speculative fiction, contests, and notifications of various events and things that the editors found interesting.
The website was launched in 2003 by John DeNardo and JP Frantz after they noticed a lack of blogs focusing on science fiction. They decided to launch a blog where they could discuss science fiction and related genre writings, events and ideas that were interesting to them. As the website's popularity grew, they began to incorporate more original content and hired additional staff members as well as brought in new contributors. SF Signal published three podcasts: SF Crossing the Gulf, The Three Hoarsemen, and The SF Signal Podcast.
In May 2016, DeNardo and Frantz announced the end of SF Signal because of the blog's increasing demands on their time.
- SFX Blog Award for Best Literary Blog (2011, won)
- Hugo Award for Best Fanzine (2012, won)
- Hugo Award for Best Fanzine (2013, won)
- Hugo Award for Best Fancast (2014, won for The SF Signal Podcast)
- "Recommended Reading by Professionals...". Retrieved 9 May 2014.
- "Tidbits". Retrieved 9 May 2014.
- "Mild Meld". Retrieved 9 May 2014.
- "Free Fiction". Retrieved 9 May 2014.
- "Spotlight on: SF Signal". Locus Online. Retrieved 5 May 2014.
- "SF Signal: Crossing the Gulf Podcast, powered by Feedburner". Retrieved 9 May 2014.
- "SF Signal: The Three Horsemen Podcast, powered by Feedburner". Retrieved 9 May 2014.
- "SF Signal Podcast, powered by Feedburner". Retrieved 9 May 2014.
- Davidson, Steve. "Interview: John DeNardo of SF Signal". Amazing Stories. Retrieved 5 May 2014.
- DeNardo, John (5 May 2016). "All Good Things...". SF Signal. Retrieved 7 May 2016.
- "SFX BLOG AWARDS 2011: The Results". SFX. Retrieved 5 May 2014.
- "2014 Hugo Awards". The Hugo Awards. Retrieved 5 May 2014.