NPR has full text and video of 2008 presidential Dem nom Barack Obama's Aug 28, 2008 acceptance speech in Denver in case you've been in a cave and have managed to miss it thus far!
The page also has DNC speeches of Al Gore, John Lewis, and others.
google.com, pub-4599738212880558, DIRECT, f08c47fec0942fa0 google.com, pub-4599738212880558, DIRECT, f08c47fec0942fa0