Alternate History Discussion
   The largest alternate history discussion forum on the web, plus a directory of individual scenarios sorted by era.
   http://alternatehistory.com

Alternate History Travel Guides
   Over 25 Travel Guides, one pocket guide, and one Interdimensional Brewpub Tour, four worlds and counting.
   http://www.ahtg.net/

Alternate History Wiki
   Exhibits pages related to alternate histories.
   http://althistory.wikia.com/wiki/Main_Page

B-49 Alternate History
   Speculates on how military aviation history would have been different if the project had not been cancelled.
   http://www.ninfinger.org/~sven/models/rms_tips/b49alt.hist.html

Changing The Times
   An electronic magazine comprising of news, opinions, services and features.
   http://www.changingthetimes.net

David Johnson's webpage
   Mostly noteworthy for the long "TrolleyWorld" scenario, also has parts of zines from Point of Divergence.
   http://home.earthlink.net/~trolleyfan/

Decades of Darkness
   History of an evil USA dominated by slave owners.
   http://decadesofdarkness.alternatehistory.com

For All Time
   A very long and detailed dystopia resulting from the death of FDR shortly after Pearl Harbor.
   http://foralltime.alternatehistory.com

History from the Closet
   Finding the hidden truth through short history and archaeology tales.
   http://historyfromthecloset.blogspot.com

John J. Reilly's Alternative History
   Contains various short speculative essays.
   http://www.johnreilly.info/althis.htm

Point Of Divergence
   An Alternate-History Amateur Press Association. A forum for discussion of ideas, and a story workshop for Alternate History Writers.
   http://www.marmotgraphics.com/pod/

Shattered World
   An extremely detailed World War 2 alternate history, with its own discussion board.
   http://www.shatteredworld.net/

Surreal History
   Includes CSA Today, Balkanized North America and Moslem Australia.
   http://users.erols.com/mwhite28/what-if.htm

The Uchronìcles
   Counterfactual literature, Nero Italiano and Chaos Goddess, including Today in History and a blog.
   http://www.giampietrostocco.it

This Day in Alternate History
   A daily calendar with at least one alternate history scenario per day. Input on the scenarios or suggestions for new scenarios welcome.
   http://www.othertimelines.com

Today In Alternate History
   Blog that features important events in history that never occurred today. Created by Robbie Taylor of College Station, Texas.
   http://althistory.blogspot.com/

Uchronia: The Alternate History List
   An annotated bibliography of novels, stories, essays and other material involving the 'what ifs' of history.
   http://www.uchronia.net/

What If Gordon Banks had Played?
   A British alternate history timeline, resulting from a different result in a 1970 football match, but leading to totalitarianism and war.
   http://www.btinternet.com/~chief.gnome