World War I Sites
The Heritage of the Great War - This site has a host of items in it, from pictures to poetry, to personal histories. Some of it is a bit gruesome, but I guess that is the nature of this conflict.

The First World War. com - OK, this is it. The motherload of all World War One sites. If it is not on here, it just does not exist. Well, maybe a bit of an exaggeration, but not by much. Go here and see.

Spartacus World War I Pages - Spartacus is the web page to everything. It is an outstanding site that contains information and links to a host of items. Their World War I site is just crammed full of good, useful items. Beware, once you go in here, you may be hooked.
Western Front Association - US Branch - Just a ton of stuff to get lost in. :-) Bring a map!

World War 1 - A HUGE site with links to, well, pretty much EVERYTHING. Absolutely enormous.

PBS History of World War I - This page goes along with the PBS TV series "The Great War and the Shaping of the 20th Century." Hey, it's PBS - you know it has to be well done.

The Western Front Association - WOW!! a treasure trove of primary sources, pictures, maps, historical data, unit histories, battles, biographies, you name it. All in one place. What a gold mine of information. Basic Training Diary - interesting site.