Rss20AndAtom10Compared - Atom Wiki People who generate syndication feeds have a choice of feed formats. As of mid-2005, the two most likely candidates will be RSS 2.0 and Atom 1.0. The purpose of this page is to summarize, as clearly and simply as possible, the differences between the RSS in Public bookmarkswith atomatom1rssrss2syndicationby 4 users