I end up reading stuff from HN , The Verge , Wired, A VC, VentureBeat, AllThingsD, Technology Review  and Ars Technica  most often.
They aren't strictly digital related, but I get a lot out of Archinect  and core77  for design interest.
1: http://news.ycombinator.com/newest, 2: http://www.theverge.com/, 3: http://www.wired.com/, 4: http://www.avc.com/, 5: http://venturebeat.com/, 6: http://allthingsd.com/, 7: http://www.technologyreview.com/, 8: http://arstechnica.com/, 9: http://archinect.com/, 10: http://core77.com/
Hours and Hours of video on how things are built, by hand. I'm utterly fascinated by the craft of building tangible objects with your hands.
A legend in the Interaction Design field
..and most recently, I enjoy getting my design related digest from Sacha Greif & Co.
By the way, the HN crowd might be interested to know Sidebar is built with Meteor (on top of Telescope actually: http://telesc.pe).
http://inbound.org/ is basically HN for people also interested in online marketing, SEO, etc - lots of great practical stuff ends up on there that never makes HN.
Are there other similar HN-type sites that are business-oriented?
StackOverflow newest C++/Python questions
Reddit - todayilearned, science, politics, askreddit
HNsearch.com, Topsy.com, pinboard.com, stackoverflow.com, getprismatic.com, subreddits for specific topics.
Sometimes, delicious.com, which i used to go every day.
subject matter specialists on twitter,
If i'm not researching something:
I open chrome and firefox pages to manage extensiosn/addons and those are the only pages i let myself open (my version of no-procrast)
I mentioned it for completeness.