Time Serious Forecasting

When on line news is released, it gets some sort of time stamp or release date. So one can analyze it like a time serious problem. We can choose whatever time frame we want, even an hour. But it depends also what you are analyzing, right? Because if its twits, looking an hour of twisk could make sense, depending on the topic. I mean, there is a lot we need to study yet. Maybe we just need to find the topic or the field for which this is informative.