Atom > RSS: Why We Should Just Call Them “Feeds” Instead of “RSS” Feeds
I’m no longer calling feeds “RSS feeds”. From now on I’m calling them “syndication” feeds, or just “feeds”. There have been two standards for doing this type of XML-based website syndication for a long time now — Atom and RSS. RSS is older and has more penetration, so its name has been confused with its function. Just like Xerox, Kleenex and Google."