Ask HN: What to do with data from half a million news articles?

A couple years, I created a service to track edits of online news articles and overlay them onto the article as you read.

It now has over 500,000 article's histories stored, including every edit made to them in the first month after they were posted.

The articles are from the nytimes, cnn, usatoday, foxnews, reuters, aljazeera, the telegraph uk, the guardian uk, el pais and die zeit.

What interesting things would you do with a dataset like this? I would be happy to share the data with people who have a good use for it.

Service is called Transparentmetric.com