The story about this from the HuffPost has 2500+ Diggs.
I just posted this, so if anyone wants to help vote it up:
digg.com/2008_us_elections/New_smear_Palin_didn_t_know_Africa_was_a_continent
Also, please vote this up:
reddit.com/r/reddit.com/comments/7boz9/new_smear_palin_didnt_know_africa_was_a_continent/