I just noticed...now Joystiq.com and Metacritic.com are working, but The Daily Caller won't load anything besides basic HTML.  So the fix above was a partial fix.  It fixed Metacritic.com and Joystiq.com, but cdn01.dailycaller.com won't load.  A news article on The Daily Caller is currently linked on The Drudge Report.  When I follow the link, it won't load anything but the html, and images/css loading from cdn01.dailycaller.com won't load at all, so the page is mostly barren. 

Again, some addresses containing "cdn" will not resolve.  (Content Delivery Network addresses are still having some problems resolving.) 

Still, at least the DNS changes above got some of my sites working again. 

edit:  After about 30 minutes, even the Dailer Caller site started working again.  Thanks!  -- Maybe some of this is on their end, with content servers not being able to handle the load?  But, considering that the DNS settings above made an immediate difference, I'm pretty sure that part of this was on AT&T's end.  It's difficult to tell from the end-user perspective.