You are the company you keep. These are some smart people whose work I follow (in no particular order):

Seth Godin
Golden Krishna
Andrew Warner
Sean Ellis
Mark Rippetoe
Dan Ariely
Fred Wilson
James Altucher
Avinash Kaushik
Charlie Hoehn
Dan Shipper
Ash Fontana
BJ Fogg
David Skok
Andrew Dumont
David Kadavy
Tom Fishburne
Sam Altman
Simon Sinek
Gentry Underwood
Venkatesh Rao
Andrew Chen
Jason Cohen
Des Traynor
Greg Isenberg
Paul Graham
Clayton Christensen
Martin Berkhan
Jason Freedman
Nate Miyaki
Jacub Linowski
Ryan Holiday
Jason Ferruggia

Podcasts I think are important:
Social Studies
Fresh Air with Terry Gross
It's Your World from the World Affairs Council
Here's The Thing
WTF Podcast
The Distance
The Growth Show
Hardcore History