It might be built on science, but Silicon Valley can be as fickle and fashion conscious as any Paris couturier. Back in 2004, for example, social networking looked trivial and grubby; truly cool programmers worked on swapping copyrighted music and movies. Even robotic Facebook founder Mark Zuckerberg was swept up in…

Allfacebook.com is reporting a rumor that Facebook will take on Apple's dominant iTunes by introducing its own music store. Few details are provided, save that they are actively looking to hire someone to head the project and discussions with studios have been ongoing. Music applications such as iLike are popular on…