I won’t go into too much detail about Google Reader as the video below explains how it works better than I ever could, but I will talk about how I use it on a daily basis.
Really Simple Syndication (RSS) is a format widely used by websites to automatically publish a feed of their latest items such a posts, stories and media. Think of it as you would an index for a magazine, allowing you to see a short summary of the latest stories to aid in your choice.
An RSS reader will let you access this feed and browse over the short summaries without visiting the website. Should you find something worth looking at, you click on the link and you will be transported to the relevant material.