as a consumer destination site and a social networking hub, twitter is much more "popular" than RSS. If we define popularity as being visible in popular media,

as a consumer destination site and a social networking hub, twitter is much more "popular" than RSS. If we define popularity as being visible in popular media, and generally acknowledged by a large portion of the population around the world as something that people know of and know about, then yes - Twitter is many orders of magnitude more popular than RSS.