Robert Scoble said website managers not using RSS feeds on their sites should be fired . Almost a year later we should extend that notion to marketing and communications executives and managers. Read the full storyIf you are currently considering RSS readers, Google reader is the one I use and find it friendly for a newbee.
If you want to know more about RSS feeds or Aggregators, go to Wikipedia.
(An aggregator or news aggregator or feed reader is client software that uses a web feed to retrieve syndicated web content such as weblogs, podcasts, vlogs, and mainstream mass media websites, or in the case of a search aggregator, a customized set of search results.
Aggregators reduce the time and effort needed to regularly check websites for updates, creating a unique information space or "personal newspaper." Once subscribed to a feed, an aggregator is able to check for new content at user-determined intervals and retrieve the update. The content is sometimes described as being "pulled" to the subscriber, as opposed to "pushed" with email or IM. Unlike recipients of some "pushed" information, the aggregator user can easily unsubscribe from a feed.
Find a list of RSS feeds/ Aggregators here
Organise the net for yourself.