Learning RSS feeds

RSS is new to me. I never heard of it. Now I got chance to learn it from KCLS learning 27 things 2.0 program. I created my Bloglines account, subscribed some blogs as RSS feeds. But when I want to subscribe some feeds from websites, it is hard to find RSS icons there. I just found some from Seattle Post intelligence RSS link which provided by our program. I can see it is a fast way to get new information from the feeds. I am not sure I will take this advantage technology now but I like to learn it and I may use it in my work or personal life when I am ready.