Always looking to the future. One favority publication is Popular Science
http://www.popsci.com/
Other brief reads include Intel Premier IT Professionals - i.e. Intel Magazine -
http://ipip.intel.com/go/magazine/
eWeek in electronic form is an occasional read
CNET summaries via email
Most of the above items are just to see what's being announced, highlighted, etc.
For helpful material which assists with day2day activities - social media sites like this one (Symantec Connect), Intel OpenPort, Microsoft Technet, etc.