I have a 35mbyte archive after a few weeks, without music payload. That's a lot of judgement and opinion close and cheap. Tools to navigate and organize that database can create very interesting services. Follow a story theme over time. Analyze and rate memetic propagation of stories across news feeds.
Statistics can guide by topic to the fast and good feeds.
Proximity detection, emphasizing stories near your home town and other selected locales. Collaborative filtering tools for aggregators can provide unique services to the cloud too. A synthetic feed. If you liked these stories, you might consider these other stories on newsfeeds to which you don't now subscribe. The following 543 terms appear to reflect some of your what you know and pay attention to.