Bitly.com helps people curating and sharing content online by converting urls to shorter links and provide data on the sharing and engagement these links generate. Of late I have seen some innovative stuff come out of the Bitly team of data scientists.
1. RT.ly lets you see what are the most popular links that are being shared. You can search for keywords, topics, networks, location, domain and language. With such a lot of information flowing across the internet it helps to see what is popular in real-time.
2. Bitly Real-Time Media Map : You can see which newspaper, Radio/TV, magazines and Online only media is popular by location and article.
Check both these tools, you may end up using both as your readers and for curating content.