Hey - still thinking about sources here. With the data I have, I could actually do an interesting analysis of news sources - i.e.:

- how often do their stories become members of clusters? - how "fast" are they to publish on a topic vs. other competitors - i.e.: who "breaks" the news? - what tags (people, companies, topics) does a given source stick close? Which do they shy away from?

Thanks very much for a really interesting set of ideas to explore!