- A quick intro can be found here
Share data across sites and read it the way that is convienient for you. Sites that contain frequently changing data should use one of the following syndication formats to allow users to browse content using different readers and methods. Syndicated data can appear on a different web site ( copyright allowing, see planetplanet for software to aggregate blogs into a single site), be read in a piece of software called an aggregator, or emailed using software such as rss2email.
- The myth of RSS Compatabilty by MarkPilgrim
New solutions should have at least a RSS 2.0 and ATOM feed to ensure maximum compatability with clients.
XML-Remote Procedure Calls
Run commands on one server from an application running on another. RPC (Remote Procedure Calls) are a programming technique where one program can get another to do a little work for it. XML-RPC and SOAP are the two most frequently used web based RPC methods and both are based on XML.