Battle of Aboukir Bay - Article describing the Battle of the Nile and the events that led up to it. - http://www.historynet.com/magazines/military_history/3031041.html
Battle of Cape St. Vincent - Site created to mark the 200th anniversary of the battle. Account of the action and details of the British commanders. - http://www.stvincent.ac.uk/Heritage/1797/
Victory at Trafalgar - Limited edition prints by Cornish artist Donald MacLeod. Details of how to buy and information about the battle. - http://www.victoryattrafalgar.co.uk/
Naval History: Great Britain. - Collection of on-line documents written between 1801 and 1820. - http://www.bruzelius.info/Nautica/Naval_History/GB/TOC.html
Historical Maritime Society - Royal Navy reenactment and research group. Includes historical articles about Nelson and the navy of 1793-1815, research resources, discussion forum, and news and information about society events. - http://www.hms.org.uk/
About.com: The Battle of Trafalgar - Article on this decisive naval battle, with profiles of key figures. - http://militaryhistory.about.com/library/weekly/aa101600a.htm?terms=Trafalgar
Battle of Trafalgar - Lengthy account of the campaign an battle, from a site dedicated to HMS Victory. - http://www.voodoo.cz/victory/trafalgar.html
Admiral Lord Duncan - Biography of Adam Duncan, victor of Camperdown in 1797. - http://www.taynet.co.uk/users/mcgon/bglink3.htm
The Battle of the Saintes - Not strictly a Napoleonic battle, but one that set the style of naval warfare for Nelson and others to follow. - http://www.fortogden.com/saintes.html
The Russian Navy in the Coalition Wars - Page that describes Russian naval activity during the period, part of an on-line history of the Russian navy. - http://www.neva.ru/EXPO96/book/chap7-1.html
Broadside - Describes life in Royal Navy in the late eighteenth and early nineteenth century. - http://www.nelsonsnavy.co.uk/
The Trafalgar Roll - Part of a genealogy site, this page lists British ships and seamen (some 1,640 of them) who fought at Trafalgar. There's also lists of killed and wounded and brief descriptions of some other naval actions. - http://www.genuki.org.uk/big/eng/Trafalgar/