If you like alternate timelines (or allohistory according to some), here are a few more links of this type.

In fact, Del Rey Publishing has a page dedicated to its own extensive SF AH books.

Some Pro AH Authors also have their own homepage, including L. Neil Smith and . There is also a writer's forum/workshop for those interested in developing their own AH's, the Point of Divergence.

Here's a page with another collection, this time of Alternate History Travel Guides.

Alternate History - Suite 101 is a page by Bucky Rwa with lots of neat stuff on it.

So does Dale Cozort's AH Page.

And Pteranodon has a very detailed listing of alternate history stuff.

Some of the stuff that goes on in the shwi newsgroup is a little - unusual. Here's a selection of the (still-ongoing) Alternate History Regna Sequences I participated in (Regna is a Japanese Poetry form, 5-7-5-7-7, alternating with 7-7-5-7-5, and... aw, just go look!)

Finally, here's the semi-official site for the late Fox & Sci-Fi Channel TV series about travellers to alternate worlds, Ally McB - no, wait, sorry - Sliders.