I would estimate that over 90% of all my professional news comes to me via RSS feeds that I subscribe to and read via Google Reader, primarily on my iPhone. Its how I keep in touch with a rapidly changing world.
I could not imagine being without this source of information and it still surprises me how many people I speak to who do not understand RSS and how valuable it could be to them.
RSS is simple. See this RSS page on my website that describes it in simple terms and includes two short animations "RSS in Plain English" and "Google Reader in Plain English".
Then see my RSS Feeds page for a list of all the RSS feeds that I generate and include website updates, jobs, events, photos, videos and more.
Finally, take a look at the blog rolls of the RSS feeds to which I subscribe.
You can subscribe to any feed on an y of these two lists yourself. Enjoy :-)