Axis History Forum - An excellent English language forum to discuss the German colonies with other sections to cover all aspects of the Axis and Central powers in the two World Wars and beforehand.

Traditionsverband - Excellent site on the German colonies.

Traditionsverband Forum - An excellent forum on the German colonies (mainly in German, but English language posts are welcome too).

Deutsche Schutzgebeite - An excellent source for all aspects of Imperial Germany and the Austro-Hungarian Dual Monarchy, including lots on the German colonies.

Tsingtau Indexseite - A very good source for information on the German period in Tsingtao. 

Jaduland - More information the German colonies.

Marine Infanterie - The History of the German Marine Infantry 1675-1919.

Ost Afrika - A very useful and active Yahoo Group for wargamers of German Colonial campaigns.

Great War Colonial - A Yahoo Group for wargamers of Great War colonial campaigns.

Reichskolonialamt - An excellent website of source materials.

Uniformen der deutschen Marine - A good site for German Naval uniforms.

Kaiserliches Marinekorps - The Imperial German Navy's ground and air forces in Flanders on the Western Front 1914-18.

Military Minatures Magazine - Organisation the of the Schutztruppe, with other pages on the police and marine forces.

Das Deutsche Reich und der 1. Weltkrieg - Including sections on the German colonies.

Polizeigeschichte - Covering the German police, including the colonial period.

Australian War Memorial - With information and photos of the occupation of German New Guinea.

East African Diary - An English soldier's experiences in the East African campaign.

Lettow-Vorbeck - The website of the family of General von Lettow-Vorbeck.  

KuK Kriegsmarine - Loads of information on the Austro-Hungarian Imperial and Royal Navy.

Gunther Pluschow - A site telling the story of Tsingtao's only pilot and his remarkable escape.

Medal Net  - An excellent website about Imperial German medals with articles on Colonial Campaigns

Von Etzel - A website on the life of General Günther von Etzel, written by one of his descendants with pictures of the German forces in China.

Turkey's War  - A website dedicated to Turkey's role in the First World War

East Asian Squadron - A website on the German East Asian Naval vessels.

Imperial Research - A new website about colonial campaigns with a good feature on the Battle of Sandfontein in 1914.

REME Museum Weapons Collection - Including photographs of all the main rifles and carbines issued to the German Colonial Forces.

Imperial War Museum London - Houses a very good collection of items from both World Wars including some German Colonial uniforms.

Musée Royale de l'Armée - The Royal Belgian Army Museum in Brussels with an excellent collection of Imperial German uniforms and equipment.

Akagaki's Website - A website featuring the German POWs from Tsingtao in Japan.

Bundesarchiv - The German state archives at Koblenz.

Frankfurt University - With large archives of photos from the colonial period.

Uniform Fotos - An excellent collection of Imperial German photographs.

Imperial German Photographs - Another excellent collection of Imperial German photographs.

Marine Akademie - With lots of Information on the German Imperial Navy.

Boxer Aufstand - A website with information on the Boxer Rebellion in China and the German participation in it.

Die Alte Armee - A website with lots of information on the Imperial German Army 1871-1918.

Kolonial Geld - A great website on the subject of banknotes and coins of the German Colonies.

Der Rittmeister - Imperial German Militaria for sale, with excellent photographs.

C & Q Equipment - 20mm figures for wargaming the Colonial campaigns of the First World War.

Kolonial Flaggen - Full details on flags in the German Colonies.

Seebatallion Flags - An interesting discussion on the standards carried by the Marine Infantry and East Asian Troops.

Chevaulegers - A French language covering the imperial German armed forces including Schutztruppe and Marine Infantry.

Schutztruppe für Deutsch Südwest Afrika - Re-enacting the German South West African Colonial Troops.

The German Imperial Navy in East Asia - An Interesting look at Germany's wartime strategy and policies in Asia.

Savage and Soldier - A website with loads of information for wargaming Colonial Wars, including Germany's.

By Jingo! - Another informative Colonial wargaming website

The Great War in a Different Light - Scans from contemporary magazines, including pictures from the siege of Tsingtao.

Project Gutenberg - Website featuring the diary of a British doctor during the War in East Africa.

Gentleman's Military Interest Club - A forum covering many aspects of Military History and Collecting.

The Prussian Machine - The Imperial German Army 1914-18. No Schutztruppe but still a very interesting website.

The Kaiser's Cross - Website about the Iron Cross but also featuring the First World War in German South West Africa.

Military Collectables (Medals) - A excellent website showing many types of medals from around the world, with a large section on Imperial Germany.

Buddecke - A very interesting website on the flyers of the Imperial German armed forces.

Micronesia Over the Years - A website showing the history of Micronesia in photos, including the German colonial period.

The Marshall Islands - A website showing the history of the Marshall Islands, including the German colonial period.

Gemeinschaft der Briefmarkenfreunde Neuguineas - Stamps from German New Guinea.

Kaiser's Bunker - A great website with uniform information and many original items from the regular Imperial German army.

Colonel J's Pickelhaube and Imperial German Musings - Another great website focussing mainly on Pickelhaubes but covering many aspects of Imperial Germany.

Pickelhaubes Forum - A highly recommended Forum, again mainly Picklehaubes, but also covering other aspects of the Imperial German Military.

German Militaria - Sellers of genuine German militaria including Imperial and Colonial items.

Lovett Artillery Collection - A great collection of Imperial German artillery pieces.

The Austro-Hungarian Army - An excellent website and forum covering all aspects of the KuK forces.

Great War Austrian Living History Group - Another great website on the Austro-Hungarian army.

Wehrmacht Awards Forum  - Primarily a WW2-era discussion group about medals and awards but also featuring imperial and colonial awards.

O Portal da História - A Portuguese history website including sections on their involvement in the First World War in Africa.

The Universal General - A comprehensive wargaming site with photographs from the War in Africa 1914-18 and an excellent section on the Belgian Colonial Forces.

Los Rayadillos - An excellent website on Spanish Colonial Uniforms

Colonial Voyage - A large website concentrating on the Portuguese and Dutch colonies but also covering other lesser known colonial powers.

Chakoten - A Danish website featuring loads of Military Historical information and curiosities.

Brazilian Uniforms in the First World War - A look at this rarely covered topic by the author of this website and Cristiano Campos.