This "Raise Your Vote" site walks you through the actual registering process, we think. But the filled out form you complete must be signed and mailed in (as opposed to electronically sent), we believe. If you have moved since the 2008 election you should re-register to vote so that you get more than a provisional ballot when you show up at your new polling location.
https://www.raiseyourvote.com/content/OH
