I thought I would open this discussion with some of my favorite Ohio related websites. Some of them will not be specifically Ohio sites, but will have some great information for those who are researching in Ohio. The first is Family Search record search pilot. They have digitized images for Ohio death records 1908-1953. Family Search Record Search Pilot
The next site is a must for Ohio researchers. Heritage Pursuit
What makes it so great is the many, many Ohio county histories that are available to search through. I have found many biographies that have given me clues to follow up on.
If you have never tried Google Book Search, it is also a great way to find county histories or surname related books.
I am also including some websites for specific counties.
I know there are alot more great links out there. Please post your favorites. Happy hunting!