Lighthouses in Danger
This site lists U.S. lighthouses and lightships currently in danger of being lost, with notes on their present status.
http://www.unc.edu/~rowlett/lighthouse/doomsday.html
The Internet Public Library (University of Michigan)
A truly excellent project with the most comprehensive directory of the lighthouses in the USA. Good photographs of each lighthouse.
http://ipl.si.umich.edu/div/light/Alphaidx.html
The National Park Service Directory of Lighthouses
A guide to those lighthouses open to the public. There is a link on this page to an inventory of all the lighthouses in the USA
http://www.cr.nps.gov/maritime/ltaccess.html
The Internet Index of Lighthouse Links
Thousands of links sorted logically. From organizations to photo collections.
http://www.harbourlights.com/links/index.html
The Harbour Lights Gallery
Harbour Lights have been kind enough to assemble some of the best photographs of Lighthouses on the internet. The example to the right was taken by the talented Derith Bennet (and is copyrighted!)