What if the events in all those science fiction movies really did take place? When did they happen? This site will tell you when.

The largest alternate history discussion forum on the web, plus a directory of individual scenarios sorted by era.

Over 25 Travel Guides, one pocket guide, and one Interdimensional Brewpub Tour, four worlds and counting.

A guide for histories that never were, including articles, original fiction, site reviews, and discussion board.

Directory of alternative history.

Speculates on how military aviation history would have been different if the project had not been cancelled.

An active alternate history E-Zine, Changing the Times is the largest repository of amateur alternate history on the web.

"I do four things in this section: 1.Point to some good but obscure alternate histories. 2.Give links to a few good alternate history sites. 3.Hype my alternate history stories. 4.Toss out a couple of "alternate history scenarios of the month" for email discussion. "

Alternate history scenarios concerning Europe, America, Asia from the 1600s-1990s.

Several alternate history scenarios featuring Britain, George W. Bush, and more.

Mostly noteworthy for the long "TrolleyWorld" scenario, also has parts of zines from Point of Divergence.

History of an evil USA dominated by slave owners.

A very long and detailed dystopia resulting from the death of FDR shortly after Pearl Harbor.

Contains various short speculative essays.

An Alternate-History Amateur Press Association. A forum for discussion of ideas, and a story workshop for Alternate History Writers.

A fun and interesting way of looking at how history could have been.

An extremely detailed World War 2 alternate history, with its own discussion board.

An anthology web comic strip that focuses on alternate history/reality. Also provides a showcase for alternate history stories.

Scenarios, articles, books.

Includes CSA Today, Balkanized North America and Moslem Australia.

A daily calendar with at least one alternate history scenario per day. Input on the scenarios or suggestions for new scenarios welcome.

Blog that features important events in history that never occurred today. Created by Robbie Taylor of College Station, Texas.

An annotated bibliography of novels, stories, essays and other material involving the 'what ifs' of history.

Features two alternate history scenarios.

Alternative history discussion about the development of rocketry.

A British alternate history timeline, resulting from a different result in a 1970 football match, but leading to totalitarianism and war.