Granted all of us have lots of work to do but I'm interested in knowing where others think the line is between procrastination and curiosity. I read HN almost

Granted all of us have lots of work to do but I'm interested in knowing where others think the line is between procrastination and curiosity. I read HN almost everyday because I feel it keeps me in the know to tech related issues. I also read cnn, nytimes, and a few other industry specific sites. If these reads are time boxed, I imagine it wouldn't be considered procrastination. Yet, if I went back too often then it slowly creeps into that procrastination zone. thoughts?