This is by far the best online encyclopedia and is available for no charge on many college networks (otherwise there is a monthly charge, although with a 14-day free trial). (
http://www.eb.com
)
Less extensive than Britannica, this electronic version of the Concise Columbia Encyclopedia can still be a very useful way to check small details, dates, and so forth. (
http://www.encyclopedia.com/
)
Resource for research on European history, publishing articles by eminent historians on a range of subjects from the later Middle Ages to post-1945. (
http://www.sagepub.co.uk/frame.html?http://www.sagepub.co.uk/journals/details/j0031.html
)
"An international journal covering European history of all centuries and subdisciplines. It aims to create a forum for ideas from across Europe, to encourage the most innovatory research, to make diverse historiographies better known and to practically assist exchanges between young historians." (
http://www.tandf.co.uk/journals/titles/13507486.html
)