Try the Heavy
Hitters for a selection
of links to the best Lists-of-Lists and resource portals. Use the
Wayback Machine (found on the
Heavy Hitters)
to find defunct websites.
It uses most of the major search tools.
Results may seem slow but results are usually very good. Give it a test
run. Try these topics: Pig War or
Alger
Hiss or War
of Jenkins Ear or submarine
history