
DVICE has an informative and interactive article called Voting Machines in the USA. They take a look at all the states in the union and see how error-prone and “hackable” the machines are. They also give you the technology each state has deployed in their voting machines.
Here in Georgia we are 100% electronic. Since I voted early, I found the machines here very easy to use and didn’t have one problem. But I’m a guy that helps manage a datacenter with 5000+ servers so hearing that from me may not be fair. Regardless, check out DVICE’s Guide to Voting Machines in the USA.