Complex sentence: Pajamas Media is a start-up company founded in 2004 by Roger L. Simon and Charles Johnson to act as a clearinghouse for investigative blogging and an organized internet presence for those who blog.
Split into simpler sentences: Pajamas Media is a start-up company founded in 2004 by Roger L. Simon and Charles Johnson. OSM will-it is hoped-act as a clearinghouse for investigative blogging and an organized internet presence for those who blog.