ALEC-sponsored Republican voter suppression is rampant in 17 Republican states. Many laws have been overturned (Wisconsin), many others are in court (Florida, Pennsylvania, Virginia, etc)
For example, Colorado just completed a massive, secret voter purge, with no notification to voters taken off the rolls. Voters are being notified by independent voter protection orgs that found out.
To check that you have not been purged from a voter role, check on your ability to still vote, or to register a new voter, go to the master website CanIVote.org
http://www.canivote.org/
Don't assume you are "safe" from being wrongly taken off voter rolls if you are registered independent or Republican - they are using demographics and last names to "purge" targeted voters, too.
More info:
"All Ohioians Should Be Able To Vote Early" - CNN
http://www.cnn.com/2012/08/07/opinio...ing/index.html
"Masters of Voter Suppression Republicans Employ Many Techniques to Keep Low-Income Voters Away From Polls"
http://www.post-gazette.com/stories/...-polls-648218/