After trying,
sudo killall -HUP mDNSResponder
sudo dscacheutil -flushcache
Navigating to chrome's dns cache flush page, clearing
How to clear/flush the DNS cache in Google Chrome?
Trying the same site in Safari
I still see godaddy's 'My Site' placeholder, while my fiance on the computer next to me sees the site I have hosted on Amazon S3. I know that restarting will fix this issue, as I've had this same issue on Lion and Mountain Lion before, but I'm wondering if there is some known bug or workaround for these DNS issues.
Edit: restarting had no effect. I was using Google's DNS servers, and my fiance was not, so I switched, flushed, and tried again with no success. The domain in question is daloupe.com
Edit: After another 10 minutes or so, it works. Perhaps I just don't understand how DNS propagation works, but my fiance and I are on the same network, with the same DNS server, and I was repeatedly flushing my cache.