All History Guide: Your guide to history on the Internet..
Now in paperback
Search for pages this web for words or phrases.
The search engine will display a weighted list of matching documents, with better matches shown first.
Each listed page is a link to the matching document; if the document has a title it will be shown, otherwise only the document's file name is displayed.
A brief explanation of the query language is available, along with examples.
Query Language 
The text search engine allows queries to be formed from arbitrary Boolean expressions containing the keywords AND, OR, and NOT, and grouped with parentheses. For example:
- information retrieval
- finds documents containing 'information' or 'retrieval'
- information or retrieval
- same as above
- information and retrieval
- finds documents containing both 'information' and 'retrieval'
- information not retrieval
- finds documents containing 'information' but not 'retrieval'
- (information not retrieval) and WAIS
- finds documents containing 'WAIS', plus 'information' but not 'retrieval'
- web*
- finds documents containing words starting with 'web'