Proper Citations are the key to your research being seen as credible - and something we all hate to do (not as much fun as the actual research) . The following links are citation generators.
Miscellaneous sites to aid in your research
Ancient Faces - Miscellaneous searchable photo database
Behind the Name - the history of thousands of first names
Behind the Name - the history of thousands of surnames
Old occupations and trades long forgotten.
Converting old style dates to new
Steven Morse's Julian to Gregorian date converter
Regnal year calendar converter - Dates based on regnal years refer to the year of the current monarch’s reign and usually have the format “year + monarch” (e.g. “4 Mary”). This page will take a date in regnal years and return an ordinary date. For instance, if you enter 6/1 1 Elizabeth I, you will get the year 1559 because June 1st in her first regnal year occurred in 1559.
Genealogy Abbreviations Roots Web
Genealogy Abbreviations Family Search - a more complete one.
David Rumsey's Historical Map Collection - over 120,000 world wide maps
Dead Fred - searchable database for photos and more
Digital Commons Collections - there are a great many of these at a wide variety of university sites (which generally focus on the local area. Type "digital Commons Collections into the search line and find one that is useful for your research.
Elephind - Worldwide newspaper archives