| Activity | Groups |
 | 5,205 members For fans of SF, Sci-Fi, Scifi and any other abbreviation you can think of! |
| 3,249 members Tolkien, Fantasy, SciFi, mythology - any and all books of wonder! Virtual ale & lively funny lusty chat - join us at LibraryThing's best pub! This group is known as one of the busiest and most… |
| 1,075 members From 100 Bullets and Akira via DC and Judge Dredd, to Marvel through the Phantom and Tintin to Zot and all other things with pictures and words. |
| 371 members Time Travel, Alternate Histories and Parallel Worlds - My favorite Science-Fiction sub-genres. |
| 375 members Feminist fans of science fiction/fantasy/utopias/magic realism & all related genres ... SF is used in the broadest sense of the word: see the FSFwiki for a sense of how broadly we view it. |
| 111 members We hope to establish a river of Sci-Fi to be read on the way to the Sea of Understanding. Hopefully we will come to the Sea in the barks of excellence which is the current fleet of Sci-Fi masterworks… |
| 686 members This group is for people in love with vampire fiction - whether it's romance, fantasy, sci-fi, horror or something else. Share your recommendations with the group! |
| 492 members "for all fantastic literature - fantasy, SF, horror and all the stuff that won't fit neatly into slots" Authors like H.P Lovecraft, M John Harrison, Mervyn Peake, China Mieville. Sci-fi, Horror,… |
| 137 members This Group is for the lovers of any good book. I know ground breaking stuff. What I mean is you don't have to love a certain book to join. Once you are part of this group you don't have to agree with… |
| 269 members for collectors/fans of Doctor Who related fiction |
| 341 members Hey, why not. For those of us who enjoy Laurel K Hamilton, Catherine Asaro, Mercedes Lackey and others of that ilk The image is from Stephanie Pui-Mun Law its actually from a Romance Role playing… |
| 318 members This is a group dedicated to exploring all things "steampunk". From Jules Verne to "The Difference Engine" to various roleplaying games, if you're interested in any variation on the steampunk theme,… |
| 143 members A group to discuss books set in the Star Trek universe (TOS, Animated, TNG, DS9, VOY, ENT, New Fronteir, Strange New Worlds). A group to discuss books *about* the Star Trek universe, and fandom. A… |
| 75 members A group to discuss science fiction books of the 1930's, 1940's, and 1950's. We can discuss the collection and stories of early authors including Clarke, Heinlein, Asimov, Bradbury, Campbell, Raymond… |
| 106 members This is a group for people who read and enjoy books - comics specifically about and/or taking place in the Star Wars Universe. Given that there are almost 200 fiction books that have been published… |
| 89 members For fans of the works of J. Neil Schulman, L. Neil Smith and F. Paul Wilson, as well as those of Heinlein, Anderson, Vinge and others. Long live Fireball and the North American Confederacy! |
| 75 members This is a group dedicated to the lovely English author, Diana Wynne Jones, who is responsible for novels such as "Howl's Moving Castle", "Castle in the Air", "House of Many Ways, the… |
| 64 members 9 books in 9 different categories, all read in 2009. For an added challenge, try completing your books by 9/9/09! This group is to help you track your progress on the Paranormal 999 challenge You… |
| 106 members La passion de l'imaginaire. |
| 49 members WARNING!! Just like Zombies appearing to be alive, this group's title may be misleading! That's right we are not all about Zombies, We have many eclectic interests and are just trying to find some… |
| 136 members 60's and 70's science fiction with a more surreal, literary, and humanistic turn, more likely to look at the social sciences as well as/instead of the hard sciences for content. New Wave authors… |
| 24 members A group for SFFWorld members. |
| 46 members A place for fans of any or all of Anne McCaffrey's works. It also includes Todd McCaffrey's books where these are to do with Pern. The name of the group is taken from the Pern series, but McCaffrey's… |
| 16 members The SF&F Book Chat is an online book club with optional meet-ups. The meet-ups take place in Accents Coffee and Tea Lounge in Dublin, Ireland on Wednesdays at 6:30pm. However, if you live outside… |
| 12 members This group is dedicated to readers of mainly Martian and Venusian adventure stories who want to discuss the books they have read with other like minded fans; to suggest further reading, and to chat… |
| 17 members You still have a soft spot for the distinctive yellow spines. |
| 3 members For anyone who has read Maximum Ride. Whether you're a die-hard fan or you've just read one book, this group is for you! |
| 2 members Strange. Beautiful. Shocking. Surreal. Apex Publications is an independent press publisher dedicated to producing exemplary works of science fiction, horror, fantasy and non-fiction. |
| 32 members We love Science Fiction and Fantasy and we love SF books and stories written by women. But we didn't see many women represented on the 2006 Hugo Ballot. Thinking about why this might be, we came up… |
| 37 members This group is dedicated to discussing books from the TV series, Lost. We are also working on cataloging all of the books found on the island. These books can be found in the library of user… |
| 44 members For readers and writers of GLBT Speculative Fiction |
| 70 members All so known as Speculative Fiction. Includes science fiction, fantasy, horror fiction, supernatural fiction, alternate history, and magic realism. Welcome all to the group of "What if?" |
| 55 members For fans of the cyberpunk genre |
| 26 members Any Broad Universe members out there on LibraryThing? |
| 36 members If you grew up reading SF in the '50s or '60s, you remember (perhaps fondly, even...) the distinctive 'dos-a-dos' paperbacks from Ace. |
| 1013 (Dormant)20 members Do you remember X-Files, Millennium, Harsh Realm and The Lone Gunmen fondly? Ever post at alt.tv.x-files? What about OBSSE? Join the group and see what books you have in common with other XF/M/HR/LGM… |
| 9 members An SF/F book group for those who want to discuss authors and books who haven't been discussed to death already. If you're tired of hearing about Harry Potter, Twilight, Laurell K. Hamilton, and the… |
| ISBN (Dormant)6 members The International Silly Beings of Nyo is a fan organization that aims to the uniting of science fiction/fantasy and anime fandom. |
| 13 members This is the librarything group for the corresponding Houston /Clear lake Science Fiction book swap group. |
| 15 members A group about Samuel R Delany and his work |
| 6 members A group for science fiction fans in the New York Capital District Area to share their libraries. Maybe we'll talk some, maybe we'll just admire the cool books each of us has been able to collect. |
| 7 members What is Torchwood? a) An anagram of "Doctor Who". b) A British television programme regarding the Cardiff branch of the Torchwood Institute. c) A World of Warcraft guild emphasizing socializing,… |
| 9 members Science fiction fandom in Uppsala, Sweden. |
| 2 members A bookclub set up to discuss books about ideas. Please feel free to visit the SF Bookclub to open a discussion or post links pertaining to the present book or any of our previous selections. August… |
| 15 members I saw a thread on this in the YA section but no group of its own,and since I've been intrgued by it lately, I started it a group of its own. What's your favorite End of the World scenerio? |
| 5 members Members of the Fredericton Science Fiction Society (FSFS). Join the group, search the society's library and let other members easily find your personal library! |
| 2 members Science fiction readers in Thailand. |
| 4 members First-time authors wanting to put their work out to a wider audience. Suggestions on sites and PODs. Link to wugglespublishing and others trying to get their work out in a shark-infested environment.… |
| 20 members |
