The document discusses theories relating to vlogging and how it challenges Andrew Keen's theory that web 2.0 devalues media expertise. David Gauntlett's theory that web 2.0 allows more creativity and connectivity is examined in relation to vlogging. Examples are provided about how popular vloggers like KSI have found success, demonstrating vlogging can be a career. While Keen argues web 2.0 threatens traditional media, vlogging shows large media businesses using YouTube successfully. Gauntlett's theory is supported by statistics showing YouTube's widespread use and the connectivity it provides users globally.