身在當今充斥部落格、社交網絡、推薦系統（recommender systems）和無限數位空間裡，我們有應接不暇的娛樂資訊選擇，但在這個所謂「celestial jukebox」的年代裡，幾乎每部電影、電視節目、音樂和書都可以透過數位網絡下載取得，那麼消費者如何從如此大量和高速增長的資源中發現和判斷自己喜歡什麼？同時，創造者和媒體公司如何確定自己的商品已被大眾找到？

《Net, Blogs and Rock‘n’Roll》是第一本有關數位年代和扇形經濟（fan economy）下的網上消費者行為指南書，揭露了新傳媒革命如何改變我們。事實上，在「搜尋」之後的下一大步就是「發現」。藉由解釋「發現」如何在社交網路的環境裡運行，作者也告訴創造者如何在這片資訊爆炸的網絡上吸引到大眾的注意。

David Jennings run the media consultancy DJ Alchemi Ltd, and is a Chartered Psychologist who consults on how people learn and collaborate online. He has also co-founded broadband and training technology start-ups and is a Life Fellow of the Royal Society of Arts.

Alongside work for corporate clients in telecoms, software, education and arts sectors, he has written on digital media and the fan economy for the music business magazine Five Eight and The Spectator. He maintains several blogs － including www.netblogsrocknroll.com － and, as a music fan, has published in fanzines and on a dedicated wiki site. He lives in London.