IT Think !

SQL info.
http://www.windowsitpro.com/SQLServer/

PC info.
http://pcworld.com/

circuitcellar
http://www.circuitcellar.com/

Linux
http://www.linux-mag.com/

PC Games
http://www.1up.com/

PC Gamer
http://www.pcgamer.com/

C/C ++
http://cuj.com/