From The Australian :

New US voters are flooding local election offices with paperwork, registering in significantly higher numbers than four years ago as interest in the presidential election runs high and an array of activist groups recruit would-be voters who could prove critical come November 2.

Cleveland has seen nearly twice as many new voters register so far as compared with 2000; Philadelphia is having its biggest boom in new voters in 20 years; and counties are bringing in temporary workers and employees from other agencies to help process all the new registration forms.

Nationwide figures aren’t yet available, but anecdotal evidence shows an upswing in many places, often urban but some rural.
[…]
Some examples, from interviews with state and county officials across the country:

- New registered voters in Miami-Dade County, a crucial Florida county in 2000, grew by 65 per cent through mid-September, compared with 2000.

- New registered voters jumped nearly 150 per cent in Cuyahoga County (Cleveland) in Ohio, one of the most hard-fought states this year.

And that’s with weeks left until registration deadlines fall, beginning in October.

Curtis Gans at the Committee for the Study of the American Electorate said a clear national picture won’t emerge until more applications are processed next month.
[…]
Oklahoma officials said they had 16,000 new Republican registrations, 15,000 new Democrats and 3500 new independents. In Oregon, where new registrations grew by 4 per cent from January through September 1, Democrats outregistered Republicans two-to-one.