RSS is a great tool—it's convenient, powerful, widely supported, and flexible to use. One of the major benefits of using RSS subscriptions is that you can be promptly informed of updates (within half an hour), such as new blog posts, new forum activities, or the latest news from news websites. However, whenever I mention RSS to my friends, most of them seem completely confused. Today, I’d like to talk specifically about RSS. It may not be very technical, but it will focus on practical use, hoping to spark further discussion or interest.