Websites
Without doubt, the best website for historical knowledge (and any knowledge) is Wikipedia. Wikipedia has strict rules on what can be posted and historical knowledge has to be properly referenced. Be careful though, ultimately Wikipedia does involve a lot of opinion.
Here are some other websites to assist you with gaining more historical knowledge or where to locate it:
Information sites:
Seneca: Many of you will be familiar with Seneca, it provides lots of content for our course and you can do quizzes too.
German Federal Archives: A collection of approximately 11 million pictures, aerial photographs and posters from modern German history. The first is from the 1860s. Available in English.
Parallel History Project: Lots of resources from the Cold War and especially the Eastern Bloc.
Wilson Digital Archive: A treasure trove with plenty of sources on the Modern world history.
Seventeen Moments in Soviet History: Part primary documents and part essay, this website is designed to be accessible to those wanting to understand the complexities of Soviet history.
Marxists.org: Archive for anything socialist/communist related including works from notable individuals.
German History in Documents and Images: Primary sources available in English and German on the history of Germany from 1500 onward.
Euro Docs; Online resource for European history. Arranged by country and era.
HyperWar: Documents from the Second World War. It's very American heavy but there are some useful resources on Europe.
1914-1918 Online: Provides primary documents for most nations who fought in the war.
Commando Supremo: A website that provides information and articles on Italy's role during the Second World War.
Imperial War Museum: You can access lots of resources the IWM offers on the First World War and Home Front.
National Army Museum: Here you can freely access the museums collections online
Bauhaus100: Provides information about the different periods of Bauhaus in Germany with photographs
Catalogues and databases:
Worldcat: An online library platform. It will tell you your nearest library that holds the book you have searched for.
Internet Archive: An online archive of websites, videos, documents and scanned books covering lots of different material.
Project Gutenburg: Appropriately named after the inventor of the printing press, Project Gutenburg is a database with public domain books available in many different formats including Kindle.
British Library ETHOS: You can download over 500,000 PhD theses here - I even found Dr Longson's. You only need to register (it's free) and then you can download.
The British Library Catalogue: The online catalogue on here is huge and easily dwarfs many other online resources but the website is often difficult to navigate. Well worth a look though. Remember to look at the free exhibition room on the Places to visit page.
Directory of Open Access Journals: Free access to thousands of online journals. The European History search alone brought up over 20,000 entries. It has lots of other subject areas as well.