News Maps?

I think I mentioned something about "News Maps" earlier but am too lazy to find it (tried search but apparently I didn't use the words "news maps" [or maybe its just too early in the morning]). Anywho, I have been on a mission to find as much many sites like Yahoo News that offer their search results as RSS feeds (more on that later) but while I was looking I re-came across NewsIsFree. I found them a year or two ago, wasn't thrilled about having to log in etc to get my feeds, I just wanted a simple online news aggregator (which I found at my beloved kinja.com). This time I looked they had some new features, like News Maps. The idea of news maps was pretty neat but while (I think) they are supposed to help you follow the popularity of news, I find them pretty confusing and not as helpful as I would like, my guess is thought that I am using them incorrectly. If you know about them, find them useful by all means please leave a comment or email me, I would love to learn more about them from those that use them.