Marketing agency Real Time Matrix announced today that it has hired video blogger Sarah Austin as its new Social Media Adviser. Austin is a very savvy young woman who combines accessible charm with a deep knowledge of what's proving effective for new stars in online video. Her live and recorded show Pop17 focuses on what Austin calls "internet micro-celebrity" but she's landed some major sponsors, including Virgin America Airlines, Intel and a tech blog you may have heard of called TechCrunch.

Austin discusses the move in a post on her personal blog.