Just like the Apple iPod launched the MP3 market, The Ricky Gervais Show launched the podcast market and later the audio book market.For anyone who hasn't listened, it is well worth the $50 or so for hours and hours of entertainment. Originally launched as a free podcast, they have since commercialised it at a very cheap price and made millions from it. It turned from podcast to audio book and established two whole new markets along the way. "Podcast" became Word of the Year in 2005 and people are now starting to realise the potential behind audio books...