http://www.tennis-warehouse.com/Nike_Dri-Fit_Elite_Crew_Sock_White_Black/descpageMANIKE-NDFESWH.html
Very popular, especially among people my age. They're cushioned well. Only downside is the price per pair. Yep, $14 for one pair.
I actually don't like those. Not as much as the normal Dri-Fits. I find them to be stuffy thick.
That, and $14/pair is kind of insane.
Eurosocks are my faves.
There is nothing better than Thorlo socks. However, if you need very thin cushioned socks, go with Jock Socks.