Ages of English timeline – explore the ten ages of English with this interactive timeline from the BBC.
Five Events that Shaped the History of English – from Oxford Dictionaries
History of the English language – from the University of Toronto's English Department. A site with many links to online, worldwide resources for the study of the English language and its history.
The History of English – fascinating short videos from the Open University, describing 1600 years of the history of the English language.
Online Etymology Dictionary – a comprehensive dictionary of the origins of modern English words: compiled by historian, author, journalist and lecturer, Douglas Harper.
Oxford Etymologist – discussions about English etymology, from Oxford Dictionaries.