The war only lasted two years but it was a devastating time in the history of a young United States.  During that period, in August 1814, Washington DC, was all but destroyed.  If you have ancestors who were engaged in this conflict, you already know that there is nowhere near as much information about it as there is for the American Revolution or the Civil War.  To learn more as a basis for your ancestral research, the War of 1812-1814 web site is loaded with links to articles, photographs, music, a video, a bibliography, and other informative materials.
http://members.tripod.com/~war1812index.html

Veteran Grave Registration Cards for the War of 1812

A special thanks to volunteers, Bob and Sandy Mafitt for all the hard work they completed in typing all these entries.

War of 1812 Veteran Grave Registration Cards Digital Index

War of 1812 Veteran Grave Registration Cards

War of 1812 - Salem Twp  1812 Military Pension Files
Roster of Ohio Soldiers in the War of 1812 - www.ohiohistory.org/onlinedoc/war1812/roster/1812/txt/page0137.txt
A Typical Decoration Day 1886