How to use RSS electronic subscription? What are the benefits? How to realize RSS?

RSS (also known as Really Simple Syndication) is a format for describing and synchronizing website content, and it is the most widely used XML application at present. Personally, it is an extension of the resource sharing model.

RSS is a push technology originated from Netscape, and it is a communication protocol to transmit the content subscribed by subscribers to them. RSS can be one of the following three explanations:

A very simple union

RDF (resource description framework) site summary

Rich website summary

But in fact, these three explanations all refer to the same joint technology. At present, RSS is widely used in online news channels, blogs and wikis. The main versions are 0.9 1, 1.0 and 2.0.

More information about RSS

Today, some people must remember that IE 4 had a very interesting function when it was first launched, that is, the news channel. The function of this news channel is very similar to the news channel launched by Netscape (Netscape was still the leading browser in the market at that time). For this reason, Netscape has defined a set of language to describe news channels, which is RSS. However, Netscape has gone from bad to worse since then, so there has been no official RSS specification (only a 0.9 version has been released). At that time, Microsoft also introduced the CDF (Channel Definition Format) data specification supporting its own IE, which was very close to RSS. Microsoft tried to use the function of news channel to turn "push" technology into mainstream application and compete with Netscape. Unexpectedly, however, the "push" technology has not found a suitable business model from beginning to end, and with the emergence of other network characteristics, it is increasingly unable to show its own advantages. The status of news channel in the browser eventually weakened, and finally disappeared in the subsequent version of IE.

The news channel has indeed entered a trough, but RSS has not been abandoned by the industry. In recent two years, blog started as a professional group and gradually became the hottest new topic on the Internet. RSS has become the most basic method to describe blog topics and update information. So the technology of RSS was taken over by UserLand, a company of famous blogger/geek Dave Winner, and continued to develop new versions to meet the needs of new network applications. The new network application is blog. Thanks to Dave Wenner's efforts, RSS was upgraded to 0.9 1 version, and then reached 0.92 version. After that, it was applied in various blog tools and supported by many professional news websites. In the process of wide application, many professionals realize that it is necessary to organize, develop and further standardize RSS. A joint team redefined RSS according to W3C's new generation semantic web technology RDF, and published RSS 1.0, defining RSS as "RDF site summary". There was no effective communication with Dave Wenner in this work, but Dave insisted on further developing the subsequent version of RSS in the direction he imagined, and did not recognize the effectiveness of RSS 1.0. RSS began to be divided into two camps, RSS 0.9x/2.0 and RSS 1.0, which also caused widespread debate among professionals.

Because of the controversy, until today, RSS 1.0 has not become the real standard of standardization organization. However, Dave Wenner only upgraded RSS to version 2.0 in September 2002, and the definition in it was completely new, without any shadow of RSS 1.0. This has caused further controversy on the Internet. Whether to make an increasingly popular data format an open standard or to be defined and controlled by a company has become the focus of controversy. Dave Wenner didn't defend himself. His view is that RSS needs further development and definition by professionals, but this understatement may not eliminate people's concern that RSS is "monopolized by a commercial company".

The previous preparation may not mean much to users, but more people may be concerned about how to add RSS output to blogs, which will make it easy for many news aggregation tools (such as NewzCrawler just recommended by CNBlog) to find you and automatically get your updates in blogs.

What's the use? Make it easy for others to find out that you updated your site, and make it easy for people to follow all the blogs they read.

RSS can be 1. Subscribe to blog 2. Subscribe to news.

You don't have to visit a website, a website or a webpage. As long as you subscribe the content you need to an RSS reader, it will automatically appear in your reader, and you don't have to constantly refresh the webpage for an urgent message, because once there is an update, the RSS reader will notify you by itself.