virtual tours from many cultures/periods.

A great site; giving a very large number of database links which do not necessarily show up on a standard google or yahoo search (because they're databases). It also indicates which databases are pay-to-view/subscription. Some of the links, however, seem to be dead - and each database will need to be searched independently once you are there, obviously.

As requested by David - here's the medieval manuscript database link for Syracuse University...

This article suggests using 'wordle' to create a 'word cloud' from a selected text. It works really well in historical sources (or modern articles) for bringing out key terms. It's also a really efficient way for students to 'scan' a text to see if it might be relevant when researching - particularly for those who read slowly, or for ESL students who are daunted by large blocks of text - and it looks very nice too!

British archaeological reports archived and searchable by name or map location.

Britain's Open University has put a great deal of old material online, and has made several interesting apps available to help work through the course notes and resources. You will need to register