Steve Rubel posts about a problem that many have noticed - we get the same information duplicated over and over again in our RSS Feeds (because often, people are commenting on the same stories).
A way should be made available to de-dupe the feed content in a RSS Feed Reader - but right now, there's no reader that does this. Here's Steve's comments:
"…One big one - and I totally concur - is Same Story Consolidation. In other words, the reader should be smart enough to know when you've read about the same topic. It should cluster results the way Google News does so that if you want to dive deeper into a story, you can. I bet we'll see this soon. "