AbstractSocial Media have changed the way we communicate privately or professionally. So the users have to understand the structures and specific conditions, the ›logics‹ and ›ideologies‹ of these new communication frameworks, they have to learn new rhetorical skills. On the other hand the users themselves develop and transform these media permanently in a creative way, as a part of their own media culture. This paper discusses various forms and requirements of ›Social Media Rhetorics‹ between persistence and dynamics, between accomodation and innovation - especially concerning Weblogs, Twitter, Facebook, YouTube and other phenomena as e.g. so called ›memes‹.