News: all the news by Robert Couse-Baker on Flickr under a CC BY 2.0 Creative Commons Licence.
Website: Breaking News by Doug on Flickr under a CC BY-NC-ND 2.0 Creative Commons Licence.
Outside broadcast: talking heads by Live4Soccer on Flickr under a CC BY-ND 2.0 Creative Commons Licence.
RSS stands for rich site summary or really simple syndication. It's a format for funnelling constantly updated information, like news, from different web sources into a single point of access, meaning you only have to visit one site instead of several. You may have noticed the RSS icon on webpages before but not realised what it was; it's a small orange box containing what looks like a wi-fi symbol (put 'rss icon' into a Google image search to see what one looks like).
To use RSS you will need to sign up to a feed reader or news aggregator like for example Digg, Feedly or AOL Reader and, when you're ready, go to the sites you are interested in and subscribe to the RSS feeds. You can then view the aggregated feeds via your chosen reader.